Quantum Chess Uses AI

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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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Achievements

None hidden

Average Unlock Rate

0.1%

of owners, per achievement

Rare (Under 5%)

100% of the list

Rarest

0.0%

Albedo

Most Common

First Steps

By Rarity

Achievements in Quantum Chess by how many owners unlocked them
Unlocked by	Achievements	Share
Under 1%	34
1–5%	2
5–20%	0
20–50%	0
50% and over	0

All Achievements

Achievements in Quantum Chess, most common first
#	Achievement	Unlocked
1	First StepsComplete your first game	1%
2	Multiverse TheoryMake your first split move	1%
3	VitriolReach the top 100 in Alchemy League season 1.	0.0%
4	UnstoppableWin 5 games in a row	0.0%
5	SulphurReach rank 2 in Alchemy League season 1.	0.0%
6

Share of the game’s Steam owners who unlocked each achievement, checked 26 Oct 2026. Steam counts owners who never played, so rates run low. How we count

Achievements on Steam

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