Buy Californium PC Key

Looking for a cheap Californium key? As of 9 Aug 2026 the cheapest key costs $0.30 at G2Play. We compare 21 offers from 21 stores, spanning $0.30 to $11.51. In keyshops the lowest price is $0.30, in official stores it starts at $0.65. 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: 17 Feb 2016
Metacritic:
64 5.9
Steam:
Mostly Positive (246)
Buy in Official Store:
-90%
$0.65
Buy in Keyshops:
-95%
$0.30
See price history

Official Stores (11)

DRM:
Gamesplanet US
Californium
Windows
+1
1w ago
DRM:
Steam
Gamesplanet US
$6.99 $0.65
-90%
Gamesplanet FR
Californium
Windows
+1
1d ago
DRM:
Steam
Gamesplanet FR
$6.90 ~$0.66
-90%
Gamesplanet DE
Californium
Windows
+1
1d ago
DRM:
Steam
Gamesplanet DE
$6.90 ~$0.66
-90%
Gamesplanet UK
Californium
Windows
+1
1d ago
DRM:
Steam
Gamesplanet UK
$6.98 ~$0.67
-90%
WinGameStore
Californium
Windows
+1
1w ago
DRM:
Steam
WinGameStore
$6.99 $1.09
-84%
Steam
Californium
Windows
+1
1w ago
DRM:
Steam
Steam
$6.99
Green Man Gaming
Californium
Windows
+1
1w ago
DRM:
Steam
Green Man Gaming
$6.99

Keyshops (10)

DRM:
Steam
Steam
G2Play
Californium Steam CD Key
Windows
+1
1d ago
DRM:
Steam
G2Play
$6.90 ~$0.30
-95%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Californium Steam CD Key
Windows
+1
1d ago
DRM:
Steam
Kinguin
$6.90 ~$0.30
-95%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Californium Steam Key GLOBAL
5.0
Windows
+1
1d ago
DRM:
Steam
Eneba
$6.90 ~$0.56
-91%
-10% with XDD10copy
-10% with XDD10copy
Yuplay
Californium
Windows
+1
3d ago
DRM:
Steam
Yuplay
$6.99 $0.57
-91%
-3% with XD3OFFcopy
-3% with XD3OFFcopy
Gameseal
Californium (PC) Steam Key - GLOBAL
Windows
+1
16h ago
DRM:
Steam
Gameseal
$6.99 ~$0.85
-87%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
Instant Gaming
Californium
Windows
+1
22h ago
DRM:
Steam
Instant Gaming
$6.94 $1.16
-83%
G2A
Californium (PC) - Steam Key - GLOBAL
Windows
+1
1w ago
DRM:
Steam
G2A
$6.99 $1.31
-81%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy

About Californium

Californium - about the game

Californium is a first-person indie adventure game that places players in the role of Elvin Green, a struggling science fiction writer in 1967 Berkeley. The experience blends simulation elements with surreal narrative as Green navigates personal crises including depression, substance use, and creative blocks while reality itself begins to fracture around him.

Gameplay

Players move through a series of contained levels representing different facets of the protagonist's life and psyche. Interaction remains minimal by design. The core loop centers on exploration and discovery rather than combat or complex puzzles. Non-player characters appear as static figures that deliver one-sided dialogue when approached, revealing fragments of story about Green's relationships and past.

Key mechanics involve locating cathode-ray tube monitors that display Roman numerals indicating how many reality-warping points exist in the immediate area. These points appear as glowing theta symbols that only become visible from precise angles or after clearing obstructing objects. Activating a point generates a spherical bubble that replaces the surrounding environment with an alternate version of the scene. Flickering objects help signal nearby symbols when they remain hidden. Completing all points in a section unlocks further narrative text and opens additional areas. A final large glyph spanning multiple surfaces requires finding the correct vantage point to activate and advance the level.

Game Modes

Californium supports only single-player exploration. There are no multiplayer options, competitive modes, or separate campaigns. Progression follows a linear sequence of levels, each built around the same reality-shifting discovery process. The structure emphasizes atmospheric traversal and incremental revelation over replayability or branching choices.

Narrative and Themes

The story draws directly from the life and works of Philip K. Dick, incorporating elements of identity crisis, alternate realities, and paranoia. Hallucinations manifest through shifting environments that players trigger themselves. Memories of Green's wife and editor surface in overlapping fragments, while drug-induced sequences and insomnia add to the sense of disorientation. The art direction uses a distinctive color palette and simplified character models to reinforce the psychedelic tone without relying on traditional realism.

Is It Worth Playing?

Californium appeals to players interested in short, atmospheric narrative experiences and tributes to classic science fiction authors. Its light interactivity and focus on observation suit those who enjoy walking simulators or interactive fiction over action-heavy titles. The game offers a complete, self-contained journey that lasts a few hours and rewards careful attention to environmental details and dialogue. No ongoing updates or additional content have appeared since its initial release, so expectations should center on its original artistic presentation rather than modern production values or extended playtime. Those drawn to surreal storytelling and the themes of reality manipulation will find the most value in its distinctive approach.

Interface:
GermanEnglishFrench
Audio:
GermanEnglishFrench
Subtitles:
GermanEnglishFrench

Age rating

Unavailable
Metacritic:
64 5.9
Steam:
Mostly Positive (246)

Minimum:

  • Processor: Intel Core i3 2.00 GHz
  • Memory: 4 GB RAM
  • Graphics: DX9 (shader model 2.0)
  • Storage: 2 GB available space

Recommended:

  • Processor: Intel Core i3 2.00 GHz
  • Memory: 4 GB RAM
  • Graphics: DX9 (shader model 2.0)
  • Storage: 2 GB available space

Minimum:

  • OS: 10.8
  • Processor: Intel Core i3
  • Memory: 4 GB RAM
  • Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher
  • Storage: 2 GB available space

Recommended:

  • OS: 10.8
  • Processor: Intel Core i3
  • Memory: 4 GB RAM
  • Graphics: ATI Radeon 2400 or higher / NVIDIA 8600M or higher
  • Storage: 2 GB available space
Historical low
Price history from official stores
$0.62
Gamesplanet DE
4 months ago
Price history from keyshops
$0.29
G2Play
1 months ago

FAQ

9 questions

Before you start looking for a cheap Californium PC key, check the essentials. Developed by ARTE France. Published by ARTE France. PC released date: 17 Feb 2016. Genres: Indie, Casual, Simulation, Adventure. Categories: Family Sharing, Single-player, Steam Achievements.

Q

Where to buy a cheap Californium Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Californium key for as low as $0.30. This deal is available at G2Play 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 Californium price on PC. Check the Californium price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Californium Steam price is $6.99. 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 Californium on sale even outside seasonal promotions. We currently detect 21 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, Californium is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

On days when both store types carried the game, the keyshop was cheaper by a median of 84%. We have recorded offers from 23 stores in total, and from 7 in the most recent reading. The spread between offers was wide: from $0.29 to $6.99. The cheapest offer came most often from Kinguin: 67 of 195 days with data.

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

Not at this time. Valve marks Californium as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data Californium 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 Californium 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 Californium

1 G2Play G2Play Keyshop
-95% $0.30
2 Kinguin Kinguin Keyshop
-95% $0.30
3 Eneba Eneba Keyshop
-91% $0.56
4 Yuplay Yuplay Keyshop
-91% $0.57
5 Gamesplanet US Gamesplanet US Official
-90% $0.65

Want to buy at the best moment? Set a price alert on XD.deals and get notified when Californium hits its next historical low.

Create Alert
Join our Discord
Get instant help from our community and stay updated on the latest deals
Set Price Alerts
Get notified by email when game prices drop to your target
Create Free Account
Unlock wishlists, price alerts, and Steam sync