Quantum Conundrum
Offers
DLC
Screenshots

About Quantum Conundrum
Quantum Conundrum is a puzzle game in which you search a strange mansion for your missing uncle and try to rescue him. After an explosion occurs just as you arrive, you use his latest invention, the Interdimensional Shift Device (IDS), to switch between dimensions and solve puzzles.
Shift dimensions
Switch dimensions in real time to change how objects behave. In Fluffy Dimension, a heavy sofa becomes light as a feather; in Anti-Gravity Dimension, objects float upward. You use these changes to get past obstacles and work your way through the mansion's complex wings.
Frequently asked questions
The best price for Quantum Conundrum is $1.43 at Kinguin. That is 84% less than on Steam, where it costs $8.99. 17 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Quantum Conundrum stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Quantum Conundrum are: Windows 7, GeForce 8800 GT, Intel Core 2 Duo, 2 GB RAM, 1.8 GB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Quantum Conundrum is a single-player game.
Mostly, yes. Valve rates Quantum Conundrum as Playable on the Steam Deck: it runs, but may need some manual setup.
Buy Quantum Conundrum 84% cheaper than on Steam.
Quantum Conundrum is available for 84% less in shops such as Kinguin, Gameseal, or YUPLAY.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.














