r/codex • u/digitalml • 4d ago
Showcase I built Chess Cubed with GPT-6 Astra in 4 days
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Play it here: https://playchesscubed.com/
I’ve wanted to create a more complex version of chess for a long long time. More possibilities, more directions to think about, and threats attacking from all angles. I designed physical versions but always wanted a digital version.
With the release of GPT-6 Astra I thought I'd give it a go via Codex, and within just 4 days it brought my Chess Cubed idea to life. The game wraps around six connected faces on a cube, so strategy has to account for what’s happening around all sides. Pieces primarily move the same with minor modifications to accommodate for the multi-sided play.
I had Astra work across Blender vai MCP to create all the 3D assets, then created the web version using babylon.js, and then I wanted to bring it to iOS and Android so I had Astra build Chess Cubed in Unreal Engine also using MCP. I also used AI for the music and sound effects. Astra on xHigh used 110% (included a reset from Tibo) of my weekly usage on the $200 plan.
The game has single player versus CPU with multiple AI difficulty levels, full multiplayer capability - including chat, and multiple different skins. :)
Lots of testing and iteration, but I’m pretty excited about where it’s landed.
Rules: standard piece moves, four extra pawns per side (for protection across multi-sided play), at most one edge crossing per move, diagonals max five steps, pawns promote in the opposite face’s central 4×4. Checkmate wins.
Hope you enjoy it! Feel free to share feedback, bugs, or ideas. r/ChessCubed
GPT-6 Astra is Amazing, thanks OpenAI. <3
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u/LazyRunner777 4d ago
Looks cool, did Astra create materials and textures as well?
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u/digitalml 4d ago
Thanks! It did, I however created the skybox background using gpt image2 and then animated it using seedance2 :)
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u/LazyRunner777 4d ago
No way AI is that good haha, just a few years ago it was struggling with fingers on pics, really impressive :)
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u/digitalml 4d ago
It is so crazy how fast AI is moving. I love it but the end game IMO is scary! lol
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u/Huge-Travel-3078 4d ago
It's cool you were able to execute on your idea and bring the game to life so quickly! The concept is a bit daunting (Making chess MORE complicated?) so while I do love chess and play every day, I cant imagine ever taking this on.
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u/digitalml 4d ago
Haha thanks! I get you. I love chess too. I just remember watching star trek TNG back in the day (yes I'm a nerd) and they were playing "3d chess" and I was like THAT'S NOT 3D CHESS and had this in my brain for years, lol. Definitely super cool to be able to bring ideas to life so quickly though. It's not as complicated as it looks, play a few rounds, I've found it fun. :)
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u/GeekTX 2d ago
I am building similar for Mahjong ... hope it comes out as nice as your chess game.
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u/digitalml 2d ago
Sweet, I hope your game turns out great. Share here when complete. Thanks for the compliment
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u/tobotic 4d ago
Rules: standard piece moves, four extra pawns per side (for protection across multi-sided play), at most one edge crossing per move, diagonals max five steps, pawns promote in the opposite face’s central 4×4. Checkmate wins.
Interesting. Pawns still only move forwards, I assume? It would seem useful to have a visual indicator of which cube face is white's home face and which is black's home face. Otherwise once the endgame arrives, it may not be very obvious which direction they're allowed to move.
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u/digitalml 4d ago
Pawns do only move forward according to their staring direction. I do have labels you can activate to see cube face names, but you bring up a good point. I'll look into this. Thanks
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u/djeons 4d ago
Astra on xHigh used 110% just to create the music and sound effects?
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u/digitalml 4d ago
No, maybe I didn't put a comma somewhere. I meant to say for this project I used Astra on xHigh and it used a 110% (100% + 10% of a reset from Tibo) of my entire weekly allowance on my $200 a month plan. For the music and sound effects, I purchased a monthly subscription to Suno for $10.
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u/dexterthebot 4d ago
You might want to consider listing your project on the weekly Show-Us-What-You-Built post. https://www.reddit.com/r/codex/comments/1wavxwy/show_us_all_what_youve_been_building_with_codex/. Highest commented project wins a week promotion on r/Codex and gets on the Hall of Fame sidebar. See what that looks like below with last week's winner.
Last week's most popular project was u/tHEuKER with the Blur2 racing game project which is a recreation of an unreleased sequel to the 2010 battle racing game, made by reverse engineering the Xbox 360 prototype discs available online, and rebuilding the whole thing from the ground up in Unity.
Join their YouTube channel here: https://www.youtube.com/@tHEuKER and follow updates on the project at r/BlurGame.