Quantum Conundrum
All offers (19)
Compare the platform, region and delivery before you buy.
Standard Edition 19 offers · EU & Global
- Quantum Conundrum (PC) Steam Key - EUActivation keySteamEuropeLowest price€1.31+ service feeView deal
- Quantum Conundrum (PC) Steam Key - GLOBALActivation keySteamGlobal€1.31+ service feeView deal
- Quantum Conundrum PC Steam CD KeyActivation keySteamGlobal€1.32+ payment feeView deal
- Quantum Conundrum (Global) (PC) - Steam - Digital KeyActivation keySteamGlobal€1.45no Plus, no ProtectView deal
- Quantum Conundrum EN/DE/FR/IT/JA/ES GlobalActivation keySteamGlobal€1.48+ service feeView deal
- Quantum Conundrum Steam Key GLOBALActivation keySteamGlobal€1.49+ fee possibleView deal
- Quantum Conundrum EU PC Steam CD KeyActivation keySteamEurope€1.52+ payment feeView deal
- Quantum Conundrum (Europe) (PC) - Steam - Digital KeyActivation keySteamEurope€1.53no Plus, no ProtectView deal
Official store Steam · price for Germany
- Steam store pageDirect purchaseSteamGermany€8.99No feeView on Steam
You buy directly from the store. "+ service fee" or "+ payment fee" means the store adds a fee at checkout; you see the final price there before you pay. We may earn a commission when you buy through our links.
Best price over the last 32 days
- Lowest €1.2612 Oct 2026
- Highest €1.2915 Oct 2026
- Today €1.26
The cheapest EU or Global key per day across all compared stores; the dashed line is the Steam price.
Screenshots
Buy Quantum Conundrum key: current price comparison
Where is the Quantum Conundrum key cheapest?
The cheapest Quantum Conundrum key that activates in the EU currently costs €1.31 at GameSeal. Keyfinder compares 19 offers from 8 shops for this price. That is 85% less than the Steam price of €8.99. Prices are refreshed hourly; region, edition and any checkout fees are shown on each offer.
What was the lowest Quantum Conundrum key price in the last 32 days?
€1.26 on 12 Oct 2026, for the standard edition that activates in the EU. The highest daily low in that time was €1.29 on 15 Oct 2026; today the cheapest key costs €1.26.
Which Quantum Conundrum keys activate in the EU?
19 offers are marked EU or Global and activate in Germany and the rest of the EU. Keys for other regions are listed separately. The keys on offer are for Steam.
How do I activate the Quantum Conundrum key?
The cheapest key activates on Steam. You redeem it there with the code the shop sends you after you pay.
Is it safe to buy a Quantum Conundrum key from GameSeal?
Before you pay, check three things on the offer: the region (EU or Global for Germany), the edition and any fee added at checkout. Keyfinder shows all three on every offer. Our GameSeal check covers who runs the shop, its fees and its regions.
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About Quantum Conundrum
Find and rescue your uncle by using his newest invention to work your way through a crazy complex mansion as you switch between dimensions and solve puzzles!
- Developer
- Airtight Games
- Publisher
- Square Enix
- Release date
- 21 Jun 2012
- Steam
- View on Steam














