Buy Quantum Conundrum PC Key

Looking for a cheap Quantum Conundrum key? As of 21 Aug. 2026 the cheapest key costs C$1.86 at Gameseal. We compare 20 offers from 14 stores, spanning C$1.86 to C$24.40. In keyshops the lowest price is C$1.86, in official stores it starts at C$9.99. With this many sellers the gap between the extremes is often several times over, so picking the store matters more here than waiting for a sale. On PC you buy a key that you activate in Steam or another client, and this is the widest market we track, with more than a quarter of games carrying a keyshop offer.

Release: 21 Jun. 2012
Metacritic:
77 7.2
Steam:
Positive (2k)
Buy in Official Store:
C$9.99
Buy in Keyshops:
-81%
C$1.86
See price history

Official Stores (2)

DRM:
Steam
Steam
Steam
Quantum Conundrum
Windows
+1
1w ago
DRM:
Steam
Steam
C$9.99
Green Man Gaming
Quantum Conundrum
Windows
+1
5w ago
DRM:
Steam
Green Man Gaming
C$9.99

Keyshops (18)

DRM:
Steam
Steam
Gameseal
Quantum Conundrum (PC) Steam Key - GLOBAL
Windows
+1
5w ago
DRM:
Steam
Gameseal
C$9.99 ~C$1.86
-81%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
G2Play
Quantum Conundrum PC Steam CD Key
Windows
+1
17h ago
DRM:
Steam
G2Play
C$14.48 ~C$2.03
-85%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Quantum Conundrum PC Steam CD Key
Windows
+1
18h ago
DRM:
Steam
Kinguin
C$14.48 ~C$2.03
-85%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Quantum Conundrum
5.0
Windows
+1
1d ago
DRM:
Steam
Yuplay
C$9.99 C$2.04
-79%
-3% with XD3OFFcopy
-3% with XD3OFFcopy
Quantum Conundrum Steam Key GLOBAL
5.0
Windows
+1
18h ago
DRM:
Steam
Eneba
C$14.48 ~C$2.26
-84%
-10% with XDD10copy
-10% with XDD10copy
Driffle
Quantum Conundrum (Global) (PC) - Steam - Digital Key
Windows
+1
1h ago
DRM:
Steam
Driffle
C$12.36 ~C$2.31
-81%
-6% with XDDEALS6copy
-6% with XDDEALS6copy
Instant Gaming
Quantum Conundrum
Windows
+1
1w ago
DRM:
Steam
Instant Gaming
C$14.48 ~C$2.72
-81%

About Quantum Conundrum

Quantum Conundrum - about the game

Quantum Conundrum is a single-player puzzle-platform game that places players in the role of a young boy navigating a strange mansion filled with physics-altering challenges. The core experience revolves around using an invention called the Interdimensional Shift Device to toggle between different dimensions, each with unique effects on objects and the environment. This setup creates a focused puzzle experience built around observation, timing, and creative problem solving rather than combat or resource management.

Gameplay

The player moves through the mansion in first-person view, running, jumping, and interacting with objects to progress. The Interdimensional Shift Device serves as the central tool, allowing instant switches between the normal dimension and others that modify weight, movement speed, or gravity. In the Fluffy dimension, heavy items become light enough to carry or push with ease. The Heavy dimension increases mass, enabling objects to press down switches or break through barriers. The Slow dimension reduces the speed of everything around the player, which helps with precise timing on moving platforms or hazards. The Reverse Gravity dimension flips the direction of gravity, sending objects and the player upward when activated. These changes apply in real time, so players often combine multiple dimensions within a single puzzle sequence to reposition items, reach new areas, or activate mechanisms. The mansion is divided into distinct wings, each presenting a series of interconnected rooms that build on previous mechanics while introducing new combinations.

Progression follows a linear path through these areas, with the goal of locating and rescuing the missing uncle. Puzzles emphasize experimentation over trial-and-error frustration, rewarding careful observation of how each dimension alters the physical rules of the space. Voice narration provides context and occasional humor during exploration, guiding players without direct instruction.

Game Modes

Quantum Conundrum offers a single continuous campaign with no separate multiplayer components or alternate modes. All gameplay occurs within the main story sequence, where players advance through the mansion wings by solving dimension-based puzzles in order. There are no competitive, cooperative, or survival variants; the entire experience centers on completing the rescue objective through sequential puzzle rooms. Difficulty scales naturally as new dimension combinations appear, but the structure remains consistent throughout.

Visuals and Presentation

The game uses a colorful, cartoonish art style that fits its lighthearted tone and young protagonist. Environments feature exaggerated mansion architecture with bright colors and clear visual cues for interactive objects. Dimension shifts produce distinct visual filters and particle effects that make the changes immediately readable. Sound design highlights the mechanical clicks of the device and the altered physics of each dimension, reinforcing the puzzle feedback loop without overwhelming the player.

Is It Worth Playing?

Quantum Conundrum suits players who enjoy methodical puzzle solving and first-person platforming in a contained single-player package. Its dimension-switching system delivers consistent variety across the campaign, and the puzzles reward logical thinking over speed or reflexes. The game runs well on modern PCs and maintains its original length, making it a straightforward choice for anyone seeking a focused experience without ongoing updates or additional content layers. Reception among puzzle fans highlights the satisfying mechanics and clear progression, though some note that certain sections lean more toward precise movement than pure brainteasers. Those who appreciate similar titles centered on environmental manipulation will find the core loop engaging from start to finish.

Interface:
GermanEnglishSpanish - SpainFrenchItalianJapanese
Audio:
English

Age rating

PEGI 7
Metacritic:
77 7.2
Steam:
Positive (2k)

Minimum:

  • Processor: Intel Core 2 Duo 2.2 Ghz / AMD Athlon x2 64 3800+
  • Memory: 2 GB RAM
  • Graphics: GeForce 8800 GT 512 MB / ATI Radeon HD 2900 512 MB
  • Storage: 1.75 GB HD space

Recommended:

  • Processor: Intel Core 2 Duo 3 GHz E8400
  • Memory: 2 GB RAM
  • Graphics: nVidia GeForce 9500 GT / ATI Radeon HD 2900
  • Storage: 1.75 GB HD space
Historical low
Price history from official stores
C$1.09
Steam
2 weeks ago
Price history from keyshops
C$0.77
Gameseal
6 months ago

FAQ

9 questions

Before you start looking for a cheap Quantum Conundrum PC key, check the essentials. Developed by Airtight Games. PC released date: 21 Jun. 2012. Genres: Strategy, Casual. Categories: Family Sharing, Single-player, Remote Play on TV, Steam Achievements, Full controller support, Steam Cloud, Steam Leaderboards. Age rating: PEGI 7.

Q

Where to buy a cheap Quantum Conundrum Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Quantum Conundrum key for as low as C$1.86. This deal is available at Gameseal and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest Quantum Conundrum price on PC. Check the Quantum Conundrum price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Quantum Conundrum Steam price is C$9.99. You can save an extra ~6% by paying with a discounted Steam gift card.

Our price tracker covers both official retailers and key marketplaces, so you can find Quantum Conundrum on sale even outside seasonal promotions. We currently detect 20 active offers from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, Quantum Conundrum is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

We have recorded offers from 16 stores in total, and from 4 in the most recent reading. The spread between offers was wide: from C$0.77 to C$9.99. The current price sits mid-range against its own history, cheaper on 70% of days with data. No single store dominates on price: the cheapest offer came from 13 stores.

Yes. Quantum Conundrum has an official page on the Steam Store. You can also buy a Quantum Conundrum Steam key from third-party sellers. Our price comparison currently includes 20 offers with Steam DRM. Pick one to ensure your Quantum Conundrum download happens on Valve's platform.

Yes, with minor tweaks. Quantum Conundrum is Steam Deck Playable - it works after small adjustments like selecting a Proton version or using the touchscreen for tiny launcher text. You can play Quantum Conundrum on Steam Deck.

According to our data Quantum Conundrum is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best Quantum Conundrum deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for Quantum Conundrum

1 Gameseal Gameseal Keyshop
-81% C$1.86
2 G2Play G2Play Keyshop
-85% C$2.03
3 Kinguin Kinguin Keyshop
-85% C$2.03
4 Yuplay Yuplay Keyshop
-79% C$2.04
5 Eneba Eneba Keyshop
-84% C$2.26

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