Buy Subject 13 PC Key

Looking for a cheap Subject 13 key? As of 8 Aug. 2026 the cheapest key costs C$0.62 at Gameseal. We compare 18 offers from 16 stores, spanning C$0.62 to C$14.51. In keyshops the lowest price is C$0.62, in official stores it starts at C$10.99. 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: 28 May 2015
Paul Cuisset
Metacritic:
59 6.3
Steam:
Mixed (137)
Buy in Official Store:
C$10.99
Buy in Keyshops:
-94%
C$0.62
Historical low
See price history

Official Stores (9)

DRM:
Steam
Steam
Steam
Subject 13
Windows
+2
3w ago
DRM:
Steam
Steam
C$10.99
GamersGate
Subject 13
Windows
+2
22w ago
DRM:
Steam
GamersGate
C$10.99
-10% with XDD10copy
-10% with XDD10copy
Green Man Gaming
Subject 13
Windows
+2
24w ago
DRM:
Steam
Green Man Gaming
C$10.99
Gamebillet
Subject 13
Windows
+2
1d ago
DRM:
Steam
Gamebillet
C$14.01 ~C$11.90
-15%
Gamebillet
Subject 13
Windows
+2
1d ago
DRM:
Steam
Gamebillet
C$14.01 ~C$12.04
-14%
GamersGate
Subject 13
Windows
+2
14h ago
DRM:
Steam
GamersGate
C$14.00 C$12.60
-10%
-10% with XDD10copy
-10% with XDD10copy
Playsum
Subject 13
Windows
+2
19h ago
DRM:
Steam
Playsum
C$14.01 ~C$12.60
-10%
-10% with XDDEALScopy
-10% with XDDEALScopy

Keyshops (9)

DRM:
Steam
Steam
Gameseal
Subject 13 (PC) Steam Key - GLOBAL
Windows
+2
3w ago
DRM:
Steam
Gameseal
C$10.99 ~C$0.62
-94%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy
G2Play
Subject 13 Steam CD Key
Windows
+2
1d ago
DRM:
Steam
G2Play
C$16.14 ~C$0.82
-94%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Subject 13 Steam CD Key
Windows
+2
1d ago
DRM:
Steam
Kinguin
C$16.14 ~C$0.82
-94%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Difmark
Subject 13 (PC)
Windows
+2
2w ago
DRM:
Steam
Difmark
C$10.99 ~C$0.90
-91%
-15% with XDDEALScopy
-15% with XDDEALScopy
Subject 13 Steam Key GLOBAL
5.0
Windows
+2
10h ago
DRM:
Steam
Eneba
C$16.14 ~C$0.99
-93%
-10% with XDD10copy
-10% with XDD10copy
Yuplay
Subject 13
Windows
+2
1d ago
DRM:
Steam
Yuplay
C$10.99 C$1.24
-88%
-3% with XD3OFFcopy
-3% with XD3OFFcopy
Loaded
Subject 13 PC
Windows
+2
5w ago
DRM:
Steam
Loaded
C$10.99 C$1.69
-84%

About Subject 13

Subject 13 - about the game

Subject 13 is an indie point-and-click adventure game developed by Paul Cuisset and released for PC in 2015. Players take on the role of Franklin Fargo, a physics professor drawn into a sequence of events that begins in an abandoned secret base and leads to exploration of a remote island filled with hidden mechanisms and environmental puzzles.

Gameplay

The core loop centers on exploration and puzzle solving in a 2.5D presentation. Three-dimensional character models move across hand-drawn, partially animated backdrops while first-person views handle close examination of objects and interfaces. Mouse controls allow movement between locations, item collection, and interaction with the environment through direct clicks or drag actions.

Puzzles rely on logic and combination mechanics. Players examine scenes for clues, gather objects, and apply them to activate devices or unlock new areas. Examples include slider mechanisms, matching tile arrangements, and variants of grid-based challenges that require careful observation rather than speed. The interface remains straightforward, with progressive difficulty that introduces more layered interactions as the story advances from the initial base setting to the island locations.

Voice acting supports key narrative moments, and the visual style emphasizes detailed environments that reward careful scanning for interactive elements. No combat or time pressure appears; progress depends entirely on interpreting clues and testing item uses within each scene.

Game Modes

Subject 13 offers only a single-player campaign. The experience follows a linear narrative path with no branching routes or alternate endings confirmed in available descriptions. All gameplay occurs in one continuous story sequence that moves the protagonist between the abandoned facility and the island without separate difficulty settings or additional modes.

Story and Setting

The narrative follows Franklin Fargo after a personal crisis leads him to an isolated location monitored by an unseen presence. The abandoned base serves as the starting point, where initial mechanisms and objects introduce the core systems. Travel to the island expands the scope with new backdrops that contain additional hiding spots and devices tied to the central mystery. Environmental storytelling and item-based revelations drive the plot forward without reliance on extensive dialogue trees.

Is It Worth Playing?

Subject 13 suits players who enjoy classic point-and-click adventures built around logic puzzles and methodical exploration. The progressive puzzle design and consistent interface make it accessible for those familiar with the genre, while the shift between facility and island environments provides variety in scene composition. Reception has been mixed, with praise for the visual presentation and puzzle variety alongside notes on occasional clunky interactions and a relatively short overall length. The game remains available on PC as a complete, self-contained title with no post-release updates or additional content required for the full experience. Fans of puzzle-focused adventures from the mid-2010s era will find the mechanics familiar and the challenge level appropriate for steady progress through observation and deduction.

Interface:
GermanEnglishSpanish - SpainFrenchItalian
Audio:
English
Subtitles:
GermanEnglishSpanish - SpainFrenchItalian

Age rating

Unavailable
Metacritic:
59 6.3
Steam:
Mixed (137)

Minimum:

  • Processor: Processor Intel dual core 2 duo 2.2 Ghz or AMD equivalent
  • Memory: 2 GB RAM
  • Graphics: 3D Graphic card with 256 Mo (NVIDIA GeForce 8800GT or higher)
  • DirectX: Version 9.0c

Recommended:

  • Processor: Processor Intel i7 3 Ghz
  • Memory: 4 GB RAM
  • Graphics: 3D Graphic card 2 Go like GeForce GTX 560 or higher
  • DirectX: Version 11

Minimum:

  • OS: OS X 10.7.5 or later
  • Processor: Intel quad-core processor running at 3.1 GHz or equivalent
  • Memory: 4096 MB RAM
  • Graphics: Intel integrated or mobile graphic card, with at least 768MB of dedicated or shared VRAM / Intel HD4000
  • Additional Notes: Shader Model 5.0 support

Recommended:

  • OS: OS X 10.7.5 or later
  • Processor: Intel Core i5 or equivalent
  • Memory: 4096 MB RAM
  • Graphics: AMD HD6970M/NVIDIA GT650M
  • Additional Notes: Shader Model 5.0 support
Historical low
Price history from official stores
C$0.97
GamersGate
5 months ago
Price history from keyshops
C$0.62
Gameseal
3 weeks ago

FAQ

9 questions

Before you start looking for a cheap Subject 13 PC key, check the essentials. Developed by Paul Cuisset. Published by Microids. PC released date: 28 May 2015. Genres: Indie, Adventure. Categories: Family Sharing, Steam Trading Cards, Single-player, Steam Achievements.

Q

Where to buy a cheap Subject 13 Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Subject 13 key for as low as C$0.62. 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 Subject 13 price on PC. Check the Subject 13 price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Subject 13 Steam price is C$10.99. 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 Subject 13 on sale even outside seasonal promotions. We currently detect 18 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, Subject 13 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 92%. We have recorded offers from 18 stores in total, and from 4 in the most recent reading. The spread between offers was wide: from C$0.62 to C$16.17. No single store dominates on price: the cheapest offer came from 15 stores.

Yes. Subject 13 has an official page on the Steam Store. You can also buy a Subject 13 Steam key from third-party sellers. Our price comparison currently includes 18 offers with Steam DRM. Pick one to ensure your Subject 13 download happens on Valve's platform.

Yes, with minor tweaks. Subject 13 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 Subject 13 on Steam Deck.

According to our data Subject 13 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 Subject 13 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 Subject 13

1 Gameseal Gameseal Keyshop
-94% C$0.62
2 G2Play G2Play Keyshop
-94% C$0.82
3 Kinguin Kinguin Keyshop
-94% C$0.82
4 Difmark Difmark Keyshop
-91% C$0.90
5 Eneba Eneba Keyshop
-93% C$0.99

Want to buy at the best moment? Set a price alert on XD.deals and get notified when Subject 13 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