Invert the world around you in this atmospheric pixel-art puzzle platformer. Uncover hidden secrets, and solve increasingly difficult handcrafted puzzles.

Joined May 2026
Check out our first dev blog post from Jan on how he tackled a long standing issue that many pixel art games have on modern engines!
Making real pixel art games is surprisingly challenging using modern engines. When character moves just 1px in 1/60s, you can't use standard delta time simulation / presentation and expect smooth results. Here is what I did for Inversion Day, to make it perfect (at least where it was possible). inversionday.com/blog/fixed-…
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Inversion Day | UPDATED DEMO OUT NOW ON STEAM! retweeted
Making real pixel art games is surprisingly challenging using modern engines. When character moves just 1px in 1/60s, you can't use standard delta time simulation / presentation and expect smooth results. Here is what I did for Inversion Day, to make it perfect (at least where it was possible). inversionday.com/blog/fixed-…
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Inversion Day | UPDATED DEMO OUT NOW ON STEAM! retweeted
I added normal maps for background tiles. A bit of depth added. Do you like it, or not worth it?
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LIGHTS! CAMERA! INVERSION! Come try the demo, it’s completely spoiler free from the main game, we have a small speedrunning community brewing for it also! store.steampowered.com/app/5…
Global Illumination, smoke simulation, fixed delta time ultimate test. Everything finally works perfectly. No artifacts, no issues. Inversion Day rendering tech is almost finished. All unity lights and shadow casters were removed from the whole project.
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Had some recent reports of some controllers not working well with the @InvDayGame demo. Time to sort that out….
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It’s very tempting to make the lights move when the lighting is computed fully in real time.
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Inversion Day | UPDATED DEMO OUT NOW ON STEAM! retweeted
Each surface emits smoke. So when you create ground and remove it later, you can see the outlines of what was there.
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Lights hanging from ropes are cool, but I’m not sure they’ll have any use beyond the visuals. And that’s probably not ideal. Everything should have some purpose, right? :) #gamedev #unity
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I accidentally turned off the character rendering, and he is still visible thanks to the smoke interaction and shadow casting. Would be cool to use this for some secret stuff.
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Inversion Day | UPDATED DEMO OUT NOW ON STEAM! retweeted
An indie game where you invert the world to escape an alien spaceship. - Use artifacts to invert space - Solve handcrafted platform puzzles - Hunt secrets in connected areas Would you play this? Game is called Inversion Day
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The demo of Inversion Day is on steam finally. It doesn't contain anything from the full game. All levels were made just for it, so no spoilers :) There are quite few secrets in it and 100% it is not that easy. Let me know if you manage to get to the full end.
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Join us for the premier of our new trailer to celebrate the launch of our new demo release on steam, which goes live in just 15 minutes! youtu.be/tTIXmryNtOg?si=SAen…
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I implemented basic rope physics for some cables in Inversion Day. But I’m not sure if there will be actually any use for them.
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Check out new version of our logo :) will soon be updating all our assets with this nes look. What do you think?
When you make a game logo inside the game, and now you can play it :)
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The smoke simulation looks pretty cool even for the logo. I'm working on trailer for demo and this could be the last scene. Rendered realtime in unity of course. 320x180 with CRT simulation effect on top.
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Demo launches real soon with this new tech for Inversion Day! We’re so excited for everyone to give it a try :)
The air quality index on this alien spaceship is probably not that good :) I like how everything feels alive now, but it's easy to make it too strong. I'm simulating a bit more than what's visible on the screen, so camera scrolling is ok.
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Testing too much smoke, moving too fast.
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Because the game is rendered in 320x180 resolution, I can run the whole fluid simulation without scaling it down.
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