Completely change the strategy of the age old game of chess with quantum physics!
All Reviews:
Mostly Positive (17) - 76% of the 17 user reviews for this game are positive.
Release Date:
Feb 28, 2017

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Early access will allow players a chance to get their hands dirty with quantum phenomena now, and will help us build a more stable and higher quality finished product. Testing feedback will help us find and squash bugs and refine features, and could lead to the addition of highly desired features.”

Approximately how long will this game be in Early Access?

“The game should be in early access for approximately 2-3 months before it is released.”

How is the full version planned to differ from the Early Access version?

“For the finished product we want to implement a leader board and intelligent matchmaking, social media integration, a personal collection of different chess set styles to show off in online games, and an in game store to acquire new sets.”

What is the current state of the Early Access version?

“The game is currently in an ALPHA state. With early access players will be able to play a working version of the game that includes Offline play (side-by-side or against an admittedly dumb AI), a Tutorial, and Online games against other players. Early access players will gain access to new features as they are added moving toward release, and will receive the full release version. The best way for early access players to learn to play is probably through Online games.

There are bugs. Your participation will help us find and squash them!”

Will the game be priced differently during and after Early Access?

“There is currently no plan to change price as we leave early access, but the addition of new features could change this.”

How are you planning on involving the Community in your development process?

“We have an active Discord server, and we have set up a forum on the website for those who prefer through which we can interact with the community and receive valuable feedback. We will also be active on the Steam discussion boards.”
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Recent updates View all (13)

July 16


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 superposition of two squares that are reachable in a single standard move. There is no more probability that you did not move at all.

Merge Moves allow you to select two squares partially occupied by the same piece type, and try to merge them together into a single square that is reachable by both in a single standard move.

These descriptions are accurate on an otherwise empty board, but as with the previous quantum rules the exact state of the board and interference effects can lead to some unexpected behavior.

This is a pretty big change, but it is for the better. The previous double move variant had some major issues that were hindering the development of a fast engine. The new move rules also make it easier to consider the possibility of going truly quantum on a quantum computer some day.

We're trying to get this new version out as soon as we can. Thanks for the patience and support.

-QC Team
2 comments Read more

June 3

Progress Report

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 chose two target locations to then occupy in superposition. A lot of work is being done under the hood, and this change may still take a bit before it sees the light of day. We're keeping at it.

Thanks for the support and for playing!
0 comments Read more
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About This Game

Dive into the strange world of quantum mechanics in the game of Quantum Chess, the game you saw in Caltech IQIM's "Anyone Can Quantum" where Paul Rudd beat Stephen Hawking. With the addition of the Quantum Move players can position a single piece in multiple locations on the board at once! This puts a whole new spin on standard chess strategy, and allows everyone to get hands on with quantum phenomena like superposition and entanglement. Play against the computer, or pit your new found mastery against your friends in an Online match.

System Requirements

Mac OS X
SteamOS + Linux
    • OS: 7, 8, 10
    • Processor: 1 GHz
    • Memory: 2 GB RAM
    • Network: Broadband Internet connection
    • Storage: 1 GB available space
    • OS: 7, 8, 10
    • Processor: 2 GHz
    • Memory: 8 GB RAM
    • Network: Broadband Internet connection
    • Storage: 4 GB available space
    • OS: Snow Leopard or better
    • Processor: 1GHz
    • Memory: 2 GB RAM
    • Storage: 1 GB available space
    • OS: Ubuntu or equivalent
    • Processor: 1GHz
    • Memory: 2 GB RAM
    • Storage: 1 GB available space

What Curators Say

3 Curators have reviewed this product. Click here to see them.
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