Quantum Conundrum

Quantum Conundrum

Airtight Games · 2012 · Puzzle Platformer, Puzzle, 3D Platformer, First-Person, Physics

PC
Very Positive84% · 1,75377Metacritic2playing now
Best price 75 Great deal
$0.98-89%
$8.99lowest tracked $0.80
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GreenManGaming
GreenManGaming
Standard Edition · Steam
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Steam
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Standard Edition · Steam
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GamesPlanet
Standard Edition · Steam
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Newegg
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Humble Store
Standard Edition · Steam
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Standard Edition · Steam
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$1.99
$9.39
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Screenshots

About Quantum Conundrum

✦ AI summary

Use an Interdimensional Shift Device to swap between wildly different dimensions—where sofas become feather-light, gravity flips, and physics bend to your will—to solve puzzles and navigate a bizarre mansion in search of your missing uncle. It's a first-person adventure that turns environmental puzzle-solving into a dimension-hopping exploration of a reality-bending house.

When you, as a young boy, are dropped off to visit your uncle, you notice something’s wrong. First, he’s not there to greet you. Second, there’s the explosion that happened right as you arrived. And third, the house seems to be even weirder than you remembered it. Now, your job is to find—and ultimately rescue—your uncle, by using his newest invention, the Interdimensional Shift Device (or IDS), to switch between dimensions and solve puzzles. That sofa too heavy to move? There’s a dimension for that! Switch to Fluffy Dimension and that sofa is now light as a feather. Need to get up to a high ledge? There’s a dimension for that! Just switch to Anti-Gravity Dimension and things begin to float upward. Need to make things heavier? There’s a dimension for th—well, you get the idea. Switch dimensions in real time, work your way through the crazy complex mansion wings and rescue your uncle!

DLC & expansions

🎁 Complete the collection

Base game + 3 of 3 DLC at today's best prices.

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What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jul 16, 2026
Classic game, despite its lack of polish its very charming and I wish it got a remake or a sequel :- )
Recommended Jul 7, 2026
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Recommended Jun 30, 2026
Very good puzzle platformer.
Recommended Jun 28, 2026
Put down the controller back in '20 and picked up the mouse to finish the game a week ago. Quite the conundrum indeed but that's what I came for. Pretty good would recommend
Recommended Jun 18, 2026
A fun and clever first-person puzzler. The four dimensions you mess around with are each useful in their own way, and there are some really inventive puzzles and platforming challenges.
Recommended Jun 17, 2026
das ist gut

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