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64% positive of 50 · Mixed · Live from Steam
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The game where Paul Rudd beat Stephen Hawking. Chess where a piece can stand on two squares at once. Split, entangle and measure your way to checkmate. Owning it on Steam unlocks Cloud Chamber, a theme where every move leaves a vapor trail. The Remaster is free for owners of the original.
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What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 64% on 2026-11-01 → 64% today (50 reviews)
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Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
AI Updates The AI had some issues, and it should now play a bit better. The computer no longer stalls in tangled late positions. It moves within its time and only picks moves the game accepts. Long games with many rook, bishop or queen splits no longer stop wi…
Fixed a bug that was breaking the AI if a king tried to split onto a castle target.
The last Unity version had redesigned piece icons. Those are back, as a Steam exclusive. Steam owners now have two choices for piece icons. The o.g. icons from early release, and the most recent redesigned icons! Select your icons in the settings menu.
The last Unity version had redesigned piece icons. Those are back, as a Steam exclusive. Steam owners now have two choices for piece icons. The o.g. icons from early release, and the most recent redesigned icons! Select your icons in the settings menu.
Fixed some UI bugs, and billing issues that could affect a player's access to premium features.
Fixed some multiplayer stuff on the back end, and deployed a prototype discord and steam friend challenge capability. Let us know if it doesn't work.
A lot of you told us the board could be hard to read, so this update adds two boards that look like the chess you already play. Tournament and WalnutTournament is the green board and Walnut the brown one. Both use the standard chess pieces, drawn large, with n…
If you own Quantum Chess on Steam, you now have exclusive access to the Cloud Chamber theme! The board sits inside a particle detector, and anything that moves leaves a vapor trail behind it. A split forks into two trails, and a merge pulls them back together.…
Quantum Chess hit 1.0 today. The remaster soft-launched in May and has been under continuous development since. Sound, replays, in-game guides, puzzle packs, correspondence, keyboard-only play, a proper mobile pass. And with it, a feature that we've always wan…
Hey Steam! We're still here, and we've been plugging away at a behemoth of tech debt. Things need to change to make Quantum Chess viable. The game has been through a lot of iterations and a lot of collaborations over the past decade. It’s become a massive Unit…
Release 1.1.0 New Features - New animations - Post game analysis board for played games - In game analysis for spectated games - Analysis games support forked game histories - Can view board state for previous ply's - Sandbox supports forked game history's - S…
The time has come! Quantum Realm Games has partnered with Arcanforge to bring Quantum Chess to the next level. Here's what is going on. Going Quantum In 2019, we were approached by Google AI Quantum to see if we could run Quantum Chess on their quantum computi…