Major update · published 26 Aug 2026, 18:50:06 UTC
Quantum Chess Remastered 1.0
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 wanted to create. A way to experiment with different ways to play Quantum Chess... The Alchemy League ships today. The Alchemy League A seas…
We've completely rebuilt Quantum Chess from the ground up. New multiplayer back end, new AI, new puzzles, new UI, Discord rich presence support (not fully featured yet). Join us in discord and let us know what needs polish.
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 Unity project full of tech debt, and it’s too unwieldy to live up to its potential. So I’m rebuilding it. Again. This time web native, using…
In-game event · published 28 Oct 2021, 19:46:04 UTC
New Stuff!
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 - Sandbox can force measurement outcomes - Multiplayer "dedicated" games. Dedicated server controls game state. - Added fen and move copy bu…
Added Features Asynchronous Multiplayer You can now play in "Correspondence" mode. These games have up to 3-day turn timers, and you can play more than one at a time. Matchmaking There are two separate matchmaking queues. One for real time games, and one for async games. Move Arrows Shift-click to draw arrows between squares Visual Updates Added piece animations
In-game event · published 21 Dec 2020, 22:27:19 UTC
Multiplayer Update
Here is a quick update to add some quality of life improvements for new players. Now, the first time you open the game, the help menu will pop up. It has a handy link, right at the top of the page, to join our Discord community! This is the best place to find other players, and get help, right now. We've also added a couple of multiplayer improvements, with low time warnings, and a more obvious…
NewsPrepare to enter the quantum realm———Major update
Major update · published 13 Dec 2020, 21:03:47 UTC
Prepare to enter the quantum realm
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 computing hardware. In July of this year, we successfully demonstrated the fruits of that labor at the Google AI Quantum Summer Symposium! Check…
It has been a little while since the last update so I wanted to give players a quick overview of the work being done. AI is the big thing. We now have a fairly stable AI for the next version. I still wouldn't call it "good", but it isn't "bad" either. It makes some fairly intelligent plays and for the most part avoids obvious mistakes. It is also capable of making quantum moves. It is based on…
Hey everyone, here's another update on progress. I've been hard at work on getting the AI up and running, but debugging was taking a long time. So I took a sidetrack and implemented a long requested feature, sandbox mode. Don't be too hard on the look of the new UI, it is being updated, but here is a sneak peek at Sandbox Mode functionality! This mode serves multitple purposes. It will be a gre…
Relative phase is an important concept in quantum physics because it can change the outcome of an operation through interference. In Quantum Chess, moves are unitary operations, and their outcomes can change if the underlying state has certain phase characteristics. Until now the player has only been presented with probability information. This could lead to confusing situations where moves app…
Hey everyone, I wanted to show you what the new quantum moves will be like when the next version is released. As stated previously the "double" move will be going away. It will be replaced by two quantum moves. The Split move will allow a piece to split and occupy two different positions. This is similar to the "double" move except there is no possibility that the piece didn't move, and it can…
NewsStill Here and Developing. Join Our Discord!———Community
Community · published 3 Feb 2019, 20:05:10 UTC
Still Here and Developing. Join Our Discord!
So I have seen an influx of new players and I wanted to let everyone know this is still an ongoing project, and due to some life changes it is getting a lot more love and attention than it has in the past months. Here is where we are at right now. Our most active community members hang out in our discord channel which can be found here The currently available game features the "double" quantum…
Hey everyone, here is a quick update. We're debugging an internal test build with the new engine. There are some strange bugs popping up, we're trying to track them down before releasing the build. The new build will support a new rule set. Quantum Moves will no longer be double moves. We now support two types of quantum moves: Split and Merge. Split Moves allow you to split a piece to occupy a…
Hey everyone, Just a quick update. Some developments in the past few months, and the desire to optimize for performance, have led to nearly a complete redesign of the game. The next release version will have a different rule set, with the quantum move being changed from its current form. Instead of a double move, it will be more like a split move. The piece will always move, but the player will…
Just a quick update. Progress is being made on the C++ version of the engine. We've settled on a significantly different representation for a board superposition that gives us more control over exactly what data needs to be accessed and manipulated throughout the game. We also have access to some pretty cool optimization techniques. Some of the core functionality is already running up to 30 tim…
Hey everyone! First off, I'm extremely sorry for the lack of communication here. We're decently active in the discord channel with updates, but I sometimes forget that not everyone is there. So here is an update. A while back we posted an update that the AI was able to make quantum moves and that it would be seen in the next patch. This is still true. The AI has been able to make quantum moves…
We have noticed an increase in disconnect reports. We think we have nailed down the problem to bandwidth and are working on a solution. Thank you for your patience.
NewsGiving The AI Some Mental Stimulation.———Community
Community · published 24 Jan 2017, 17:54:43 UTC
Giving The AI Some Mental Stimulation.
Hey everyone! We wanted to drop an update so you know what is going on. We've made progress on the AI, but it is being stubborn. It makes quantum moves now, but it is slow. We're working on optimizing it before we launch the next patch. Thanks for your patience! -QC Team
Hey everyone. We've been hard at work with some bug fixes and an update to AI! Next patch will have a more skilled AI that can make quantum moves. Thanks for your patience.
We've had a number of reports of people having difficulty connecting to, or being disconnected from, online games. Here are a few things you can try to fix the issue. · Select a different region to play (top right corner in the lobby there is a selection box for regions). We have noticed some countries fair better with other servers outside their default region. · We know that some firewalls ar…
We just got another update in before Christmas! Patch 0.1.6200: · Added more content to the tutorial. · Fixed a bug in the tutorial when clicking "Play Again" after killing the king. · Minor UI updates. Known Issues · There is an issue with the back button on the Lobby · It is possible to break the AI player by using a lot of superposition · The AI player could be better at the game · The previ…
Thank you everyone for your continued feedback. We just put out another patch with some bug fixes, UI updates, and tutorial updates. Patch 0.1.6198: · Added content to the tutorial to help explain the quantum move, entanglement, and measurement a bit better (more to come). · Fixed bug that prevented players from making moves after completing a game and choosing "Play Again" · Adjusted some time…