video games

Werewolves and Wanderer

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This blog post is also available as a video. Would you prefer to watch/listen to me tell you about the video game that had the biggest impact on my life?

Of all of the videogames I’ve ever played, perhaps the one that’s had the biggest impact on my life¹ was: Werewolves and (the) Wanderer.²

This simple text-based adventure was originally written by Tim Hartnell for use in his 1983 book Creating Adventure Games on your Computer. At the time, it was common for computing books and magazines to come with printed copies of program source code which you’d need to re-type on your own computer, printing being significantly many orders of magnitude cheaper than computer media.³

Front cover of The Amazing Amstrad Omnibus, by Martin Fairbanks, with its bright yellow text on a red background. — *Werewolves and Wanderer* was adapted for the Amstrad CPC⁴ by Martin Fairbanks and published in *The Amazing Amstrad Omnibus* (1985), which is where I first discovered it.

When I first came across the source code to Werewolves, I’d already begun my journey into computer programming. This started alongside my mother and later – when her quantity of free time was not able to keep up with my level of enthusiasm – by myself.

I’d been working my way through the operating manual for our microcomputer, trying to understand it all.⁵

Scan of a ring-bound page from a technical manual. The page describes the use of the "INPUT" command, saying "This command is used to let the computer know that it is expecting something to be typed in, for example, the answer to a question". The page goes on to provide a code example of a program which requests the user's age and then says "you look younger than [age] years old.", substituting in their age. The page then explains how it was the use of a variable that allowed this transaction to occur. — The ring-bound 445-page A4 doorstep of a book quickly became adorned with my pencilled-in notes, the way a microcomputer manual *ought* to be. It’s strange to recall that there was a time that beginner programmers still needed to be reminded to press `[ENTER]` at the end of each line.

And even though I’d typed-in dozens of programs before, both larger and smaller, it was Werewolves that finally helped so many key concepts “click” for me.

In particular, I found myself comparing Werewolves to my first attempt at a text-based adventure. Using what little I’d grokked of programming so far, I’d put together a series of passages (blocks of PRINT statements⁶) with choices (INPUT statements) that sent the player elsewhere in the story (using, of course, the long-considered-harmful GOTO statement), Choose-Your-Own-Adventure style.

Werewolves was… better.

Photograph of Dan in his mid-teens, with shoulder-length bleached-blonde hair and wearing a t-shirt with a picture of a snarling wolf, sits in front of a running PC (with its beige case open) on which an external modem is precariously balanced. — By the time I was the model of a teenage hacker, I’d been writing software for *years*. Most of it terrible.

Werewolves and Wanderer was my first lesson in how to structure a program.

Let’s take a look at a couple of segments of code that help illustrate what I mean (here’s the full code, if you’re interested):

10 REM WEREWOLVES AND WANDERER

20 GOSUB 2600:REM INTIALISE
30 GOSUB 160
40 IF RO<>11 THEN 30

50 PEN 1:SOUND 5,100:PRINT:PRINT "YOU'VE DONE IT!!!":GOSUB 3520:SOUND 5,80:PRINT "THAT WAS THE EXIT FROM THE CASTLE!":SOUND 5,200
60 GOSUB 3520
70 PRINT:PRINT "YOU HAVE SUCCEEDED, ";N$;"!":SOUND 5,100
80 PRINT:PRINT "YOU MANAGED TO GET OUT OF THE CASTLE"
90 GOSUB 3520
100 PRINT:PRINT "WELL DONE!"
110 GOSUB 3520:SOUND 5,80
120 PRINT:PRINT "YOUR SCORE IS";
130 PRINT 3*TALLY+5*STRENGTH+2*WEALTH+FOOD+30*MK:FOR J=1 TO 10:SOUND 5,RND*100+10:NEXT J
140 PRINT:PRINT:PRINT:END

...

2600 REM INTIALISE
2610 MODE 1:BORDER 1:INK 0,1:INK 1,24:INK 2,26:INK 3,18:PAPER 0:PEN 2 
2620 RANDOMIZE TIME
2630 WEALTH=75:FOOD=0
2640 STRENGTH=100
2650 TALLY=0
2660 MK=0:REM NO. OF MONSTERS KILLED

...

3510 REM DELAY LOOP
3520 FOR T=1 TO 900:NEXT T
3530 RETURN

Locomotive BASIC had mandatory line numbering. The spacing and gaps (...) have been added for readability/your convenience.

What’s interesting about the code above? Well…

The code for “what to do when you win the game” is very near the top. “Winning” is the default state. The rest of the adventure exists to obstruct that. In a language with enforced line numbering and no screen editor⁷, it makes sense to put fixed-length code at the top… saving space for the adventure to grow below.
Two subroutines are called (the GOSUB statements):
- The first sets up the game state: initialising the screen (2610), the RNG (2620), and player characteristics (2630 – 2660). This also makes it easy to call it again (e.g. if the player is given the option to “start over”). This subroutine goes on to set up the adventure map (more on that later).
- The second starts on line 160: this is the “main game” logic. After it runs, each time, line 40 checks IF RO<>11 THEN 30. This tests whether the player’s location (RO) is room 11: if so, they’ve exited the castle and won the adventure. Otherwise, flow returns to line 30 and the “main game” subroutine happens again. This broken-out loop improving the readability and maintainability of the code.⁸
A common subroutine is the “delay loop” (line 3520). It just counts to 900! On a known (slow) processor of fixed speed, this is a simpler way to put a delay in than relying on a real-time clock.

The game setup gets more interesting still when it comes to setting up the adventure map. Here’s how it looks:

2680 REM SET UP CASTLE
2690 DIM A(19,7):CHECKSUM=0
2700 FOR B=1 TO 19
2710   FOR C=1 TO 7
2720     READ A(B,C):CHECKSUM=CHECKSUM+A(B,C)
2730   NEXT C:NEXT B
2740 IF CHECKSUM<>355 THEN PRINT "ERROR IN ROOM DATA":END

...

2840 REM ALLOT TREASURE
2850 FOR J=1 TO 7
2860   M=INT(RND*19)+1
2870   IF M=6 OR M=11 OR A(M,7)<>0 THEN 2860
2880   A(M,7)=INT(RND*100)+100
2890 NEXT J

2910 REM ALLOT MONSTERS
2920 FOR J=1 TO 6
2930   M=INT(RND*18)+1
2940   IF M=6 OR M=11 OR A(M,7)<>0 THEN 2930
2950   A(M,7)=-J
2960 NEXT J
2970 A(4,7)=100+INT(RND*100)
2980 A(16,7)=100+INT(RND*100)

...

3310 DATA   0,  2,  0,  0,  0,  0,  0
3320 DATA   1,  3,  3,  0,  0,  0,  0
3330 DATA   2,  0,  5,  2,  0,  0,  0
3340 DATA   0,  5,  0,  0,  0,  0,  0
3350 DATA   4,  0,  0,  3, 15, 13,  0
3360 DATA   0,  0,  1,  0,  0,  0,  0
3370 DATA   0,  8,  0,  0,  0,  0,  0
3380 DATA   7, 10,  0,  0,  0,  0,  0
3390 DATA   0, 19,  0,  8,  0,  8,  0
3400 DATA   8,  0, 11,  0,  0,  0,  0
3410 DATA   0,  0, 10,  0,  0,  0,  0
3420 DATA   0,  0,  0, 13,  0,  0,  0
3430 DATA   0,  0, 12,  0,  5,  0,  0
3440 DATA   0, 15, 17,  0,  0,  0,  0
3450 DATA  14,  0,  0,  0,  0,  5,  0
3460 DATA  17,  0, 19,  0,  0,  0,  0
3470 DATA  18, 16,  0, 14,  0,  0,  0
3480 DATA   0, 17,  0,  0,  0,  0,  0
3490 DATA   9,  0, 16,  0,  0,  0,  0

Again, I’ve tweaked this code to improve readability, including adding indention on the loops, “modern-style”, and spacing to make the DATA statements form a “table”.

What’s this code doing?

Line 2690 defines an array (DIM) with two dimensions⁹ (19 by 7). This will store room data, an approach that allows code to be shared between all rooms: much cleaner than my first attempt at an adventure with each room having its own INPUT handler.
The two-level loop on lines 2700 through 2730 populates the room data from the DATA blocks. Nowadays you’d probably put that data in a separate file (probably JSON!). Each “row” represents a room, 1 to 19. Each “column” represents the room you end up at if you travel in a given direction: North, South, East, West, Up, or Down. The seventh column – always zero – represents whether a monster (negative number) or treasure (positive number) is found in that room. This column perhaps needn’t have been included: I imagine it’s a holdover from some previous version in which the locations of some or all of the treasures or monsters were hard-coded.
The loop beginning on line 2850 selects seven rooms and adds a random amount of treasure to each. The loop beginning on line 2920 places each of six monsters (numbered -1 through -6) in randomly-selected rooms. In both cases, the start and finish rooms, and any room with a treasure or monster, is ineligible. When my 8-year-old self finally deciphered what was going on I was awestruck at this simple approach to making the game dynamic.
Rooms 4 and 16 always receive treasure (lines 2970 – 2980), replacing any treasure or monster already there: the Private Meeting Room (always worth a diversion!) and the Treasury, respectively.
Curiously, room 9 (the lift) defines three exits, even though it’s impossible to take an action in this location: the player teleports to room 10 on arrival! Again, I assume this is vestigal code from an earlier implementation.
The “checksum” that’s tested on line 2740 is cute, and a younger me appreciated deciphering it. I’m not convinced it’s necessary (it sums all of the values in the DATA statements and expects 355 to limit tampering) though, or even useful: it certainly makes it harder to modify the rooms, which may undermine the code’s value as a teaching aid!

Something you might notice is missing is the room descriptions. Arrays in this language are strictly typed: this array can only contain integers and not strings. But there are other reasons: line length limitations would have required trimming some of the longer descriptions. Also, many rooms have dynamic content, usually based on random numbers, which would be challenging to implement in this way.

As a child, I did once try to refactor the code so that an eighth column of data specified the line number to which control should pass to display the room description. That’s a bit of a no-no from a “mixing data and logic” perspective, but a cool example of metaprogramming before I even knew it! This didn’t work, though: it turns out you can’t pass a variable to a Locomotive BASIC GOTO or GOSUB. Boo!¹⁰

An experimental program being run that attempts to GOSUB a variable, failing with a syntax error on the relevant line. — In hindsight, I could have tested the functionality before I refactored with a very simple program, but I was only around 10 or 11 and still had lots to learn!

Werewolves and Wanderer has many faults¹¹. But I’m clearly not the only developer whose early skills were honed and improved by this game, or who hold a special place in their heart for it. Just while writing this post, I discovered:

A moderately-faithful Inform reimplementation
A less-faithful semi-graphical adaptation
A C# reimplementation with a web interface (video)
An ongoing livestreamed effort to reimplement as a Sierra-style point-and-click adventure
An Applesoft BASIC implementation which includes a dynamically-revealed map
A C reimplementation with a high score table
A somewhat-faithful reimplementation in Rust (playable online via WebAssembly)
A very accurate rendition in Python
A Ruby/Python microservices-based implementation
Many, many people commenting on the above or elsewhere about how instrumental the game was in their programming journey, too.

A decade or so later, I’d be taking my first steps as a professional software engineer. A couple more decades later, I’m still doing it.

And perhaps that adventure -the one that’s occupied my entire adult life – was facilitated by this text-based one from the 1980s.

Footnotes

¹ The game that had the biggest impact on my life, it might surprise you to hear, is not among the “top ten videogames that stole my life” that I wrote about almost exactly 16 years ago nor the follow-up list I published in its incomplete form three years later. Turns out that time and impact are not interchangable. Who knew?

² The game is variously known as Werewolves and Wanderer, Werewolves and Wanderers, or Werewolves and the Wanderer. Or, on any system I’ve been on, WERE.BAS, WEREWOLF.BAS, or WEREWOLV.BAS, thanks to the CPC’s eight-point-three filename limit.

³ Additionally, it was thought that having to undertake the (painstakingly tiresome) process of manually re-entering the source code for a program might help teach you a little about the code and how it worked, although this depended very much on how readable the code and its comments were. Tragically, the more comprehensible some code is, the more long-winded the re-entry process.

⁴ The CPC’s got a fascinating history in its own right, but you can read that any time.

⁵ One of my favourite features of home microcomputers was that seconds after you turned them on, you could start programming. Your prompt was an interface to a programming language. That magic had begun to fade by the time DOS came to dominate (sure, you can program using batch files, but they’re neither as elegant nor sophisticated as any BASIC dialect) and was completely lost by the era of booting directly into graphical operating systems. One of my favourite features about the Web is that it gives you some of that magic back again: thanks to the debugger in a modern browser, you can “tinker” with other people’s code once more, right from the same tool you load up every time. (Unfortunately, mobile devices – which have fast become the dominant way for people to use the Internet – have reversed this trend again. Try to View Source on your mobile – if you don’t already know how, it’s not an easy job!)

⁶ In particular, one frustration I remember from my first text-based adventure was that I’d been unable to work around Locomotive BASIC’s lack of string escape sequences – not that I yet knew what such a thing would be called – in order to put quote marks inside a quoted string!

⁷ “Screen editors” is what we initially called what you’d nowadays call a “text editor”: an application that lets you see a page of text at the same time, move your cursor about the place, and insert text wherever you feel like. It may also provide features like copy/paste and optional overtyping. Screen editors require more resources (and aren’t suitable for use on a teleprinter) compared to line editors, which preceeded them. Line editors only let you view and edit a single line at a time, which is how most of my first 6 years of programming was done.

⁸ In a modern programming language, you might use while true or similar for a main game loop, but this requires pushing the “outside” position to the stack… and early BASIC dialects often had strict (and small, by modern standards) limits on stack height that would have made this a risk compared to simply calling a subroutine from one line and then jumping back to that line on the next.

⁹ A neat feature of Locomotive BASIC over many contemporary and older BASIC dialects was its support for multidimensional arrays. A common feature in modern programming languages, this language feature used to be pretty rare, and programmers had to do bits of division and modulus arithmetic to work around the limitation… which, I can promise you, becomes painful the first time you have to deal with an array of three or more dimensions!

¹⁰ In reality, this was rather unnecessary, because the ON x GOSUB command can – and does, in this program – accept multiple jump points and selects the one referenced by the variable x.

¹¹ Aside from those mentioned already, other clear faults include: impenetrable controls unless you’ve been given instuctions (although that was the way at the time); the shopkeeper will penalise you for trying to spend money you don’t have, except on food, presumably as a result of programmer laziness; you can lose your flaming torch, but you can’t buy spares in advance (you can pay for more, and you lose the money, but you don’t get a spare); some of the line spacing is sometimes a little wonky; combat’s a bit of a drag; lack of feedback to acknowledge the command you enterted and that it was successful; WHAT’S WITH ALL THE CAPITALS; some rooms don’t adequately describe their exits; the map is a bit linear; etc.

Satoru Iwata’s first commercial game has a secret

This is a repost promoting content originally published elsewhere. See more things Dan's reposted.

Codex (YouTube)

This was a delightful vlog. It really adds personality to what might otherwise have been a story only about technology and history.

I subscribed to Codex’s vlog like… four years ago? He went dark soon afterwards, but thanks to the magic of RSS, I got notified as soon as he came back from his hiatus.

Sisyphus: The Board Game (Digital Edition)

I’m off work sick today: it’s just a cold, but it’s had a damn good go at wrecking my lungs and I feel pretty lousy. You know how when you’ve got too much of a brain-fog to trust yourself with production systems but you still want to write code (or is that just me?), so this morning I threw together a really, really stupid project which you can play online here.

Screenshot showing Sisyphus carrying a rock up a long numbered gameboard; he's on square 993 out of 1000, but (according to the rules printed below the board) he needs to land on 1000 exactly and never roll a double-1 or else he returns to the start. — It’s a board game. Well, the digital edition of one. Also, it’s not very good.

It’s inspired by a toot by Mason”Tailsteak” Williams (whom I’ve mentioned before once or twice). At first I thought I’d try to calculate the odds of winning at his proposed game, or how many times one might expect to play before winning, but I haven’t the brainpower for that in my snot-addled brain. So instead I threw together a terrible, terrible digital implementation.

Go play it if, like me, you’ve got nothing smarter that your brain can be doing today.

All the game descriptions from the sale

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You’ve got 37 unpaid parking tickets. You just got pulled over for speeding. In your defense, you were texting your sister about how drunk you are. Plus there’s all that blood on your windshield. Obviously you know it’s deer blood, but the police officers walking toward your vehicle don’t. Still, in the time it takes them to figure that out, maybe you’ll sober up. Or escape on foot! Either way, it’ll probably be fine.

User Tags: Poor Choices / Story Rich / Multiple Endings / Parkour

Collect dead seagulls and build a zoo to house them all. Beautify the zoo with artistic flair and deodorizing sprays. Design creative group promotions to stir up interest! Is that a customer? You’d better hope it’s not the owner of the live seagull zoo down the street, because he’s probably got some questions.

User Tags: Hard Work / Supply / Demand / Diseases & Parasites

…

Claire Hummel

Claire Hummel produced fake video game art for the Steam Summer Sale, which was already excellent, but when @g-a-y-g-o-y-l-e reblogged, asking for more context, Claire delivered and then some. Every single one of these “game descriptions” is a special kind of comedy gold… and yet somehow believable from the store that sells us Dream Daddy, IKEA VR Pancake Kitchen, Organ Trail, Oh… Sir!! The Insult Simulator, and Goat Simulator (all of which I own copies of). Go read the full list.

DNDle (Wordle, but with D&D monster stats)

Don’t have time to read? Just start playing:

Play DNDle

There’s a Wordle clone for everybody

Am I too late to get onto the “making Wordle clones” bandwagon? Probably; there are quite a few now, including:

Hundreds of different languages,
Entirely different word sets (swear words, slang, bird banding codes, posix commands, common passwords…),
Different games in the same style (absurdle plays adversarially like my cheating hangman game, crosswordle involves reverse-engineering a wordle colour grid into a crossword, heardle is like Wordle but sounding out words using the IPA…)
Twists on the idea (try guessing prime numbers, equations, countries, chess openings, chords, or the composition of parties of fantasy adventurers…)
Just plain silly ones (horsle, easy wordle, chortle…)

Screenshot showing a WhatsApp conversation. Somebody shares a Wordle-like "solution" board but it's got six columns, not five. A second person comments "Hang on a minute... that's not Wordle!" — I’m sure that by now all your social feeds are full of people playing Wordle. But the cool nerds are playing something new…

Now, a Wordle clone for D&D players!

But you know what hasn’t been seen before today? A Wordle clone where you have to guess a creature from the Dungeons & Dragons (5e) Monster Manual by putting numeric values into a character sheet (STR, DEX, CON, INT, WIS, CHA):

Screenshot of DNDle, showing two guesses made already. — Just because nobody’s asking for a game doesn’t mean you shouldn’t make it anyway.

What are you waiting for: go give DNDle a try (I pronounce it “dindle”, but you can pronounce it however you like). A new monster appears at 10:00 UTC each day.

And because it’s me, of course it’s open source and works offline.

The boring techy bit

Like Wordle, everything happens in your browser: this is a “backendless” web application.
I’ve used ReefJS for state management, because I wanted something I could throw together quickly but I didn’t want to drown myself (or my players) in a heavyweight monster library. If you’ve not used Reef before, you should give it a go: it’s basically like React but a tenth of the footprint.
A cache-first/background-updating service worker means that it can run completely offline: you can install it to your homescreen in the same way as Wordle, but once you’ve visited it once it can work indefinitely even if you never go online again.
I don’t like to use a buildchain that’s any more-complicated than is absolutely necessary, so the only development dependency is rollup. It resolves my import statements and bundles a single JS file for the browser.

Taking a Jackbox Zoom Party to the Next Level

A love a good Jackbox Game. There’s nothing quite like sitting around the living room playing Drawful, Champ’d Up, Job Job, Trivia Murder Party, or Patently Stupid. But nowadays getting together in the same place isn’t as easy as it used to be, and as often as not I find my Jackbox gaming with friends or coworkers takes place over Zoom, Around, Google Meet or Discord.

There’s lots of guides to doing this – even an official one! – but they all miss a few pro tips that I think can turn a good party into a great party. Get all of this set up before your guests are due to arrive to make yourself look like a super-prepared digital party master.

1. Use two computers!

Two laptops: one showing a full-screen Zoom chat with Dan and "Jackbox Games"; the second showing a windowed copy of Jackbox Party Pack 8. — You can use more than two, but two should be considered the minimum for the host.

Using one computer for your video call and a second one to host the game (in addition to the device you’re using to play the games, which could be your phone) is really helpful for several reasons:

You can keep your video chat full-screen without the game window getting in the way, letting you spend more time focussed on your friends.
Your view of the main screen can be through the same screen-share that everybody else sees, helping you diagnose problems. It also means you experience similar video lag to everybody else, keeping things fair!
You can shunt the second computer into a breakout room, giving your guests the freedom to hop in and out of a “social” space and a “gaming” space at will. (You can even set up further computers and have multiple different “game rooms” running at the same time!)

2. Check the volume

3.5mm adapter plugged into the headphone port on a laptop. — Plugging an adapter into the headphone port tricks the computer into thinking some headphones are plugged in without actually needing the headphones quietly buzzing away on your desk.

Connect some headphones to the computer that’s running the game (or set up a virtual audio output device if you’re feeling more technical). This means you can still have the game play sounds and transmit them over Zoom, but you’ll only hear the sounds that come through the screen share, not the sounds that come through the second computer too.

That’s helpful, because (a) it means you don’t get feedback or have to put up with an echo at your end, and (b) it means you’ll be hearing the game exactly the same as your guests hear it, allowing you to easily tweak the volume to a level that allows for conversation over it.

3. Optimise the game settings

Jackbox games were designed first and foremost for sofa gaming, and playing with friends over the Internet benefits from a couple of changes to the default settings.

Sometimes the settings can be found in the main menu of a party pack, and sometimes they’re buried in the game itself, so do your research and know your way around before your party starts.

Turn the volume down, especially the volume of the music, so you can have a conversation over the game. I’d also recommend disabling Full-screen Mode: this reduces the resolution of the game, meaning there’s less data for your video-conferencing software to stream, and makes it easier to set up screen sharing without switching back and forth between your applications (see below).

Turning on the Motion Sensitivity or Reduce Background Animations option if your game has it means there’ll be less movement in the background of the game. This can really help with the video compression used in videoconferencing software, meaning players on lower-speed connections are less-likely to experience lag or “blockiness” in busy scenes.

It’s worth considering turning Subtitles on so that guests can work out what word they missed (which for the trivia games can be a big deal). Depending on your group, Extended Timers is worth considering too: the lag introduced by videoconferencing can frustrate players who submit answers at the last second only to discover that – after transmission delays – they missed the window! Extended Timers don’t solve that, but they do mean that such players are less-likely to end up waiting to the last second in the first place.

Finally: unless the vast majority or all of your guests are in the USA, you might like to flip the Filter US-Centric Content switch so that you don’t get a bunch of people scratching their heads over a cultural reference that they just don’t get.

By the way, you can use your cursor keys and enter to operate Jackbox games menus, which is usually easier than fiddling with a mouse.

4. Optimise Zoom’s settings

Whatever videoconferencing platform you’re using, the settings for screen sharing are usually broadly similar. I suggest:

Make sure you’ve ticked “Share sound” or a similar setting that broadcasts the game’s audio: in some games, this is crucial; in others, it’s nice-to-have. Use your other computer to test how it sounds and tweak the volume accordingly.
Check “Optimize for video clip”; this hints to your videoconferencing software that all parts of the content could be moving at once so it can use the same kind of codec it would for sending video of your face. The alternative assumes that most of the screen will stay static (because it’s the desktop, the background of your slides, or whatever), which works better with a different kind of codec.
Use “Portion of Screen” sharing rather than selecting the application. This ensures that you can select just the parts of the application that have content in, and not “black bars”, window chrome and the like, which looks more-professional as well as sending less data over the connection.
If your platform allows it, consider making the mouse cursor invisible in the shared content: this means that you won’t end up with an annoying cursor sitting in the middle of the screen and getting in the way of text, and makes menu operation look slicker if you end up using the mouse instead of the keyboard for some reason.

Don’t forget to shut down any software that might “pop up” notifications: chat applications, your email client, etc.: the last thing you want is somebody to send you a naughty picture over WhatsApp and the desktop client to show it to everybody else in your party!

Tick Tock

Looking for something with an “escape room” vibe for our date night this week, Ruth and I tried Tick Tock: A Tale for Two, a ~~multiplayer~~ simultaneous cooperative play game for two people, produced by Other Tales Interactive. It was amazing and I’d highly recommend it.

The game’s available on a variety of platforms: Windows, Mac, Android, iOS, and Nintendo Switch. We opted for the Android version because, thanks to Google Play Family Library, this meant we only had to buy one copy (you need it installed on both devices you’re playing it on, although both devices don’t have to be of the same type: you could use an iPhone and a Nintendo Switch for example).

The really clever bit from a technical perspective is that the two devices don’t communicate with one another. You could put your devices in flight mode and this game would still work just fine! Instead, the gameplay functions by, at any given time, giving you either (a) a puzzle for which the other person’s device will provide the solution, or (b) a puzzle that you both share, but for which each device only gives you half of the clues you need. By working as a team and communicating effectively (think Keep Talking and Nobody Explodes but without the time pressure), you and your partner will solve the puzzles and progress the plot.

(We’re purists for this kind of puzzle game so we didn’t look at one another’s screens, but I can see how it’d be tempting to “cheat” in this way, especially given that even the guys in the trailer do so!)

Nopepad showing handwritten notes including: "Ticket stub 00067", "Clock shop open 18th", and "Set clock 12". — You could probably play successfully without keeping notes, but we opted to grab a pad and pen at one point.

The puzzles start easy enough, to the extent that we were worried that the entire experience might not be challenging for us. But the second of the three acts proved us wrong and we had to step up our communication and coordination, and the final act had one puzzle that had us scratching our heads for some time! Quite an enjoyable difficulty curve, but still balanced to make sure that we got to a solution, together, in the end. That’s a hard thing to achieve in a game, and deserves praise.

The plot is a little abstract at times and it’s hard to work out exactly what role we, the protagonists, play until right at the end. That’s a bit of a shame, but not in itself a reason to reject this wonderful gem of a game. We spent 72 minutes playing it, although that includes a break in the middle to eat a delivery curry.

If you’re looking for something a bit different for a quiet night in with somebody special, it’s well worth a look.

Mow-Rio Kart

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Ian Padgham [origful] (YouTube)

I have this exact same ride-on mower, but mine doesn’t do this. I feel cheated.

How to beat Skyrim without walking

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ymfah (YouTube)

I don’t normally watch videos of other people playing video games. I’m even less inclined to watch “walkthroughs”.

This, though, isn’t a walkthrough. It’s basically the opposite of a walkthrough: this is somebody (slowly, painstakingly) playing through Skyrim: Special Edition without using any of the movement controls (WASD/left stick) whatsoever. Wait, what? How is such a thing possible?

That’s what makes the video so compelling. The creator used so many bizarre quirks and exploits to even make this crazy stupid idea work at all. Like (among many, many more):

Dragging a bucket towards yourself to “push” yourself backwards (although not upstairs unless you do some very careful pushing “under” your feet).
Doing an unarmed heavy attack to “stumble” forward a little at a time, avoiding the stamina loss by eating vegetable soup or by cancelling the attack (e.g. by switching quickselected arrows), which apparently works better if you’re overencumbered.
Mid-stumble, consuming a reagent that paralyses yourself to glitch through thin doors. Exploit a bug in dropping gear for your companion near an area-change doorway to get all of the reagent you’ll ever need.
Rush-grinding your way to the Whirlwind Sprint shout and Vampire Lord “Bats” ability so you’ve got a way to move forward quickly, then pairing them with paralysis to catapult yourself across the map.
When things get desperate, exploiting the fact that you can glitch-teleport yourself places by commanding your companion to go somewhere, quicksaving before they get there, then quickloading to appear there yourself.

This video’s just beautiful: the cumulation of what must be hundreds or thousands of person-hours of probing the “edges” of Skyrim‘s engine to discover all of the potentially exploitable bugs that make it possible.

Banners Begone!

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It’s a clicker quest of purging banners from your homepage!

Push through dozens of banners and upgrade various web-tools to grow your ad-blocking power.
Hone your clicking skills – matters are in your own ~~fingers~~ hands!

There’s no time for idling, show these ads their place!

Banners Begone!

I quite enjoyed this progressive game: it’s a little bit different than most, the theming is fun, it lends itself to multiple strategies, and it’s not geared towards making you wait for longer and longer intervals (as is common in this genre): there’s always something you can be doing to get closer to your goal.

You’ll need a mouse with left and right buttons.

Break Into . Us (lock puzzle game)

I’ve made a puzzle game about breaking open padlocks. If you just want to play the game, go play the game. Or read on for the how-and-why of its creation.

About three months ago, my friend Claire, in a WhatsApp group we both frequent, shared a brainteaser:

WhatsApp message from Claire, challenging people to solve her puzzle. — Was this way back at the beginning of April? Thank heavens for WhatsApp scrollback.

The puzzle was to be interpreted as follows: you have a three-digit combination lock with numbers 0-9; so 1,000 possible combinations in total. Bulls and Cows-style, a series of clues indicate how “close” each of several pre-established “guesses” are. In “bulls and cows” nomenclature, a “bull” is a correctly-guessed digit in the correct location and a “cow” is a correctly-guessed digit in the wrong location, so the puzzle’s clues are:

682 – one bull
614 – one cow
206 – two cows
738 – no bulls, no cows
380 – one cow

"Can you open the lock using these clues?" puzzle — Feel free to stop scrolling at this point and solve it for yourself. Or carry on; there are no spoilers in this post.

By the time I’d solved her puzzle the conventional way I was already interested in the possibility of implementing a general-case computerised solver for this kind of puzzle, so I did. My solver uses a simple “brute force” technique, as follows:

Put all possible combinations into a search space.
For each clue, remove from the search space all invalid combinations.
Whatever combination is left is the correct answer.

Animation showing how the first three clues alone are sufficient to derive a unique answer from the search space of Claire's puzzle. — The first three clues of Claire’s puzzle are sufficient alone to reduce the search space to a single answer, although a human is likely to need more.

Visualising the solver as a series of bisections of a search space got me thinking about something else: wouldn’t this be a perfectly reasonable way to programatically generate puzzles of this type, too? Something like this:

Put all possible combinations into a search space.
Randomly generate a clue such that the search space is bisected (within given parameters to ensure that neither too many nor too few clues are needed)
Repeat until only one combination is left

Interestingly, this approach is almost the opposite of what a human would probably do. A human, tasked with creating a puzzle of this sort, would probably choose the answer first and then come up with clues that describe it. Instead, though, my solution would come up with clues, apply them, and then see what’s left-over at the end.

Sample output of the puzzle generator for an alphabet of 0-9 and a combination length of 3. — Sometimes it comes up with inelegant or unchallenging suggestions, but for the most part my generator produces adequate puzzles.

I expanded my generator to go beyond simple bulls-or-cows clues: it’s also capable of generating clues that make reference to the balance of odd and even digits (in a numeric lock), the number of different digits used in the combination, the sum of the digits of the combination, and whether or not the correct combination “ascends” or “descends”. I’ve ideas for other possible clue types too, which could be valuable to make even tougher combination locks: e.g. specifying how many numbers in the combination are adjacent to a consecutive number, specifying the types of number that the sum of the digits adds to (e.g. “the sum of the digits is a prime number”) and so on.

A single solution in a search space derived in multiple ways. — Like the original puzzle, puzzles produced by my generator might have redundancies. In the picture above, the black square can be defined by the light blue, dark blue, and green bisections only: the yellow bisection is rendered redundant by the light blue one. I’ve left this as a deliberate feature.

Next up, I wanted to make a based interface so that people could have a go at the puzzles in their web browser, track their progress through the levels, get a “score” based on the number and difficulty of the locks that they’d cracked (so they can compare it to their friends), and save their progress to carry on next time.

I implemented in pure vanilla HTML, CSS, SVG and JS, with no dependencies. Compressed, it delivers to your browser and is ready-to-play in a little under 10kB, most of which is the puzzles themselves (which are pregenerated and stored in a JSON file). Naturally, it lends itself well to running offline, so it’s PWA-enhanced with a service worker so it can be “installed” onto your device, too, and it’ll check for bonus puzzles and other updates periodically.

The original puzzle shown via BreakInto.Us. — Naturally, the original puzzle appears in the web-based game, too.

Honestly, the hardest bit of implementing the frontend was the “spinnable” digits: depending on your browser, these are an endless-scrolling <ul> implemented mostly in CSS and with snap points set, and then some JS to work out “what you meant” based on where you span to. Which feels like the right way to implement such a thing, but was a lot more work than putting together my own control, not least because of browser inconsistencies in the implementation of snap points.

Anyway: you should go and play the game, now, and let me know what you think. Is it worth expanding and improving? Should I leave it as it is? I’m open to ideas (and if you don’t like that I’m not implementing your suggestions, you can always fork a copy of the code and change it yourself)!

Or if you’d like to see some of the other JavaScript experiments I’ve done, you might enjoy my “cheating” hangman game, my recreation of the lunar lander game I wrote in college, or rediscover that time I was ill and came up the worst conceivable tool to calculate Pi.

SPACEX – ISS Docking Simulator

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SpaceX

I managed to crack this on my second attempt, but then: I did play an ungodly amount of Kerbal Space Program a few years back. I guess this means I’m now qualified to be an astronaut, right? I’d better update my CV…

Mackerelmedia Fish

Normally this kind of thing would go into the ballooning dump of “things I’ve enjoyed on the Internet” that is my reposts archive. But sometimes something is so perfect that you have to try to help it see the widest audience it can, right? And today, that thing is: Mackerelmedia Fish.

What is Mackerelmedia Fish? I’ve had a thorough and pretty complete experience of it, now, and I’m still not sure. It’s one or more (or none) of these, for sure, maybe:

A point-and-click, text-based, or hypertext adventure?
An homage to the fun and weird Web of yesteryear?
A statement about the fragility of proprietary technologies on the Internet?
An ARG set in a parallel universe in which the 1990s never ended?
A series of surrealist art pieces connected by a loose narrative?

Rock Paper Shotgun’s article about it opens with “I don’t know where to begin with this—literally, figuratively, existentially?” That sounds about right.

I stared into THE VOID and am OK! — This isn’t the reward for “winning” the “game”. But I was proud of it anyway.

What I can tell you with confident is what playing feels like. And what it feels like is the moment when you’ve gotten bored waiting for page 20 of Argon Zark to finish appear so you decide to reread your already-downloaded copy of the 1997 a.r.k bestof book, and for a moment you think to yourself: “Whoah; this must be what living in the future feels like!”

Because back then you didn’t yet have any concept that “living in the future” will involve scavenging for toilet paper while complaining that you can’t stream your favourite shows in 4K on your pocket-sized supercomputer until the weekend.

Dancing... thing? — I was always more of a Bouncing Blocks than a Hamster Dance guy, anyway.

Mackerelmedia Fish is a mess of half-baked puns, retro graphics, outdated browsing paradigms and broken links. And that’s just part of what makes it great.

It’s also “a short story that’s about the loss of digital history”, its creator Nathalie Lawhead says. If that was her goal, I think she managed it admirably.

If I wasn’t already in love with the game already I would have been when I got to the bit where you navigate through the directory indexes of a series of deepening folders, choose-your-own-adventure style. Nathalie writes, of it:

One thing that I think is also unique about it is using an open directory as a choose your own adventure. The directories are branching. You explore them, and there’s text at the bottom (an htaccess header) that describes the folder you’re in, treating each directory as a landscape. You interact with the files that are in each of these folders, and uncover the story that way.

Back in the naughties I experimented with making choose-your-own-adventure games in exactly this way. I was experimenting with different media by which this kind of branching-choice game could be presented. I envisaged a project in which I’d showcase the same (or a set of related) stories through different approaches. One was “print” (or at least “printable”): came up with a Twee1-to-PDF converter to make “printable” gamebooks. A second was Web hypertext. A third – and this is the one which was most-similar to what Nathalie has now so expertly made real – was FTP! My thinking was that this would be an adventure game that could be played in a browser or even from the command line on any (then-contemporary: FTP clients aren’t so commonplace nowadays) computer. And then, like so many of my projects, the half-made version got put aside “for later” and forgotten about. My solution involved abusing the FTP protocol terribly, but it worked.

(I also looked into ways to make Gopher-powered hypertext fiction and toyed with the idea of using YouTube annotations to make an interactive story web [subsequently done amazingly by Wheezy Waiter, though the death of YouTube annotations in 2017 killed it]. And I’ve still got a prototype I’d like to get back to, someday, of a text-based adventure played entirely through your web browser’s debug console…! But time is not my friend… Maybe I ought to collaborate with somebody else to keep me on-course.)

Three virtual frogs. One needs a hug. — My first batch of pet frogs died quite quickly, but these ones did okay.

In any case: Mackerelmedia Fish is fun, weird, nostalgic, inspiring, and surreal, and you should give it a go. You’ll need to be on a Windows or OS X computer to get everything you can out of it, but there’s nothing to stop you starting out on your mobile, I imagine.

Sso long as you’re capable of at least 800 × 600 at 256 colours and have 4MB of RAM, if you know what I mean.

idTech 4 WebAssembly port – Doom 3 Demo

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Continuation Labs

Back in 2011, some folks cross-compiled Doom (the original, not the reboot, obviously) to JavaScript, leveraging the capabilities of the then-relatively-young <canvas> element and APIs. I was really impressed to see that JavaScript had come so far and that performance on desktop devices was so slick. Sure, this was an 18-year-old video game, but it was playable in a browser, which was a long way from the environment for which it was originally developed.

Now Doom 3‘s playable in a browser, and my mind’s blown all over again. This follows almost the same curve – Doom 3’s 16 years old – but it still goes to show that there’s little limit to the power of client-side browser programming. They’ve done this magic with WebAssembly; while WebAssembly goes slightly against my ideas about the open-source nature of the Web, I still respect the power it commands to do heavyweight crunching tasks like this one.

How long until AAA developers start developing with the Web as an additional platform?

Boneworks

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…

I know only a small percentage of you use VR and to everyone else I might as well by telling you how spiffy the handrails are up in this ivory tower, but for what it’s worth, Boneworks is the first game in a while to make me think VR might be getting somewhere. It’s not there yet. The physics is full of little niggles as you might expect from a game trying to juggle so much. The major issue with the climbing is only your hands and head can be moved and your in-game legs just flop around getting in the way of things like two stubborn trails of cum dangling off your mum’s chin, but forget all that.

…

Yahtzee Croshaw (The Escapist)

Speaking of VR, Yahtzee’s still playing with it and thinks it’s improving, which is high praise. So there’s hope yet.

I really need to dig my heavyweight gear out of the attic, but I’m waiting until we (eventually) move house. And I absolutely agree with Yahtzee’s observation about the value of VR games in which you can sit down, sometimes.