iiinova — where your digital self keeps evolving

It's easy. 🛠️ Over 100 short examples, each a single file you can read in a minute. 65 open source arcade games to build on. One script tag and you're drawing sprites, no build step unless you want one. github.com/KilledByAPix...

It's fast. ⚡ I wanted to know how LittleJS really stacks up, so I built an open benchmark: sprites and lit 3D cubes, same test for every engine. LittleJS keeps up with the fastest paths of PixiJS, Three.js and PlayCanvas, and leads in several. Try it: killedbyapixel.github.io/webgl-engine...

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It's small. 🐁 The whole engine, with 3D, Box2D physics and sound, is about 100 KB gzipped. The core is 36 KB. A bundled 2D game ships at around 26 KB.

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Frank Force @frankforce.bsky.social · 01/10/2026

Choo-Choo! LittleJS now does 2D and 3D. 🚂💨 New website, and the whole page runs on the engine.

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Reversiology ⚪️⚫️ a 3D chip in a little bit of code. www.dwitter.net/d/36395 with(x)for(a=3-S(t),i=0;i<40;beginPath(fill(ellipse(890+i*3,...i>9?[600-i*3,r=540,r/a,95]:[950,r,r/7,0],0,9))))fillStyle=i?i>9?R(v=i>37?315-a*30:i>23&&a*70,v,v):'#0001':'#174',r=i++?i*29+199:2e5

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Made a quick trailer for GoYomi, my free 9×9 Go trainer with an AI coach. New since last time: select "Their idea" to see what your opponent is planning, and you can play by keyboard or by ear with a screen reader. ▶ killedbyapixel.github.io/GoYomi

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The part I use most: hints when I'm stuck, and "their idea", which shows what the AI is planning to do to me. You can take back any move and try something else. There are 156 puzzles from real games too. 🚀

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Don't let the friendly coach fool you. The top level is stronger than any human! It reads 22 moves ahead, plays the last 22 perfectly, and holds its own against Edax, one of the strongest Reversi programs. 🧠

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I made this because I wanted to get better at Reversi but had no idea what I was doing wrong. So the coach grades each move and tells you why, in plain words. Here it is catching me giving away a corner. 👍

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⚫️⚪ this JavaScript makes a tiny random go board: www.dwitter.net/d/36385 W=108 t*=60 with(x)fillStyle=t?t**8&t>9?'#fff':R():'#ca7',t&&t<10?fillRect(523,t*W,873,9)*fillRect(t*W+415,W,9,873):beginPath(fill(arc(523+t%9*W,(t/9|0)*W,t?Math.random()>.6&t<89&&50:2e3,0,9)))

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Frank Force @frankforce.bsky.social · 29/09/2026

My new game Reversiology is out! Learn Reversi by playing, with a coach that grades every move. Free in your browser ▶ killedbyapixel.github.io/Reversiology

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every SP13KTRA skybox, stacked 🌈 all eight panoramic skies are now baked into textures for the Dreamcast port. It draws faster and looks better too! 👍 #dreamcast #homebrew #js13k

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Frank Force @frankforce.bsky.social · 29/09/2026

SP13KTRA for Dreamcast v1.12 🌈🚀 big push for 60 fps on real hardware. way fewer verts, baked skybox, DMA to the PowerVR, plus VMU screen support! thanks to everyone who tried it on hardware 🙏 free download 👇 github.com/KilledByAPix... #Dreamcast #homebrew #js13k

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Frank Force @frankforce.bsky.social · 28/09/2026

GoYomi, my free Go trainer, just got a massive upgrade! 🧠 killedbyapixel.github.io/GoYomi/ Every AI level now runs KataGo's neural network right in your browser: way smarter and way faster. Plus a better coach that explains your mistakes and lets you find the better move yourself.

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Want to try it on a real Dreamcast? Here's the disc image, burn it to a CD-R or drop it on a GDEMU: github.com/KilledByAPix... I haven't tried it on hardware yet but I will soon. Let me know how it runs.

The first boot was barely 11 fps. So we replaced the stock GL layer with a custom PowerVR renderer and did some other optimizations to get it to a solid 60 fps in the Flycast emulator.

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It wasn't easy and I had to help solve some of the tougher bugs and weird graphical glitches we saw along the way. Everything is running smooth now!

I've seen some cool stuff made by Claude so I wanted to try an AI-assisted retro port. This game was the perfect candidate: small, self contained, everything procedural. So I let Claude hammer on it, rewriting it in C++ and testing it against the original.

Frank Force @frankforce.bsky.social · 25/09/2026

My JS13K game SP13KTRA is now available on Dreamcast! 💿 All 8 tracks, 60 fps, VMU saves, full soundtrack. More about how I did it in this thread. 🧵 #dreamcast #homebrew #js13k #claude

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I suck at Go. So I used Claude to help build a Go coach. ⚪️⚫️ GoYomi is free 9×9 Go in your browser, with many tools to help you improve! 👍 Play it here: killedbyapixel.github.io/GoYomi/

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Frank Force @frankforce.bsky.social · 22/09/2026

compare with the real thing. i highly recommend seeing one of these in person if you can, they hit different at full size. 👍

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Frank Force @frankforce.bsky.social · 22/09/2026

Rothko Minis 🎨 www.dwitter.net/d/36316 a small exercise to replicate Mark Rothko's style in as few bytes as possible.

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Frank Force @frankforce.bsky.social · 19/09/2026

Rain Puddles ☔ dwitter.net/d/20129

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Frank Force @frankforce.bsky.social · 18/09/2026

my js13k game is fully 3d with a custom webgl renderer in 13 kilobytes! 🌈🚀 one shader does everything! each vertex carries flags for glow, fog, lights and rainbows. there are no textures! the whole track is built into static buffers, and only the trails update each frame.

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Frank Force @frankforce.bsky.social · 17/09/2026

here's a top down view of all 8 tracks in SP13KTRA 🌈 every track is built procedurally, the full 3D road with banked turns, hills and crossovers, and all the scenery. each one has its own theme, palette, and building shapes. and the whole game fits in 13 kilobytes! #js13k

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Frank Force @frankforce.bsky.social · 16/09/2026

Free Palestine 🍉 www.dwitter.net/d/36295 #tinycode for(c.width&=i=6272;i--;x.fillStyle=i<4?'#777':X+Y<67&&X-Y<5?'#f33':Y<21?'#111':Y<42?'#eee':'#0a3',x.fillRect(27+X*.7+X/48*C(X/8-Y/9-t*6),9+Y*.7+X/20*S(X/16-t),1,i>3||99))X=i%99,Y=i/99|0

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Frank Force @frankforce.bsky.social · 16/09/2026

the incredibly tiny procedural music system that i made for my new game SP13KTRA is now available for people to play around with! 🎶🌈 it makes billions of music variations using only a single number. killedbyapixel.github.io/SP13KTRA/too... find a good seed and share it! 👇

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Frank Force @frankforce.bsky.social · 16/09/2026

My new game SP13KTRA is out! 🌈 8 racers, 8 tracks, 8 songs, real 3D, and it all fits in 13K. Play in your browser on desktop or phone: mouse, keyboard, gamepad or touch. @newgrounds.com @wavedash.com @itch.io @github.com #js13k #gamedev

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Frank Force @frankforce.bsky.social · 15/09/2026

each song is a 128 beat loop split into sections. a filter sweeps open, then a breakdown and drop. notes use one of the 4 predefined scales so nothing clashes. there are 6 ZzFX instruments plus echo and sidechain.