Buy Subnautica: Below Zero PC Key

Looking for a cheap Subnautica: Below Zero key? As of 2 Sep. 2026 the cheapest key costs C$9.99 at Steam. We compare 40 offers from 19 stores, spanning C$9.99 to C$56.69. In keyshops the lowest price is C$13.31, 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.

Metacritic:
82 7.1
Steam:
Very Positive (89k)
Buy in Official Store:
-75%
C$9.99
Historical low
Buy in Keyshops:
-72%
C$13.31
See price history

Official Stores (7)

DRM:
Steam
Steam
Steam
Subnautica: Below Zero
Windows
+3
1d ago
DRM:
Steam
Ends in 5 days
Steam
C$39.99 C$9.99
Ends in 5 days
-75%
Gamebillet
Subnautica: Below Zero
Windows
+3
2h ago
DRM:
Steam
Gamebillet
C$41.60 ~C$34.49
-17%
GamersGate
Subnautica: Below Zero
Windows
+3
4w ago
DRM:
Steam
GamersGate
C$39.99 C$35.99
-10%
-10% with XDD10copy
-10% with XDD10copy
WinGameStore
Subnautica: Below Zero
Windows
+3
7h ago
DRM:
Steam
WinGameStore
~C$41.60
JoyBuggy
Subnautica: Below Zero
Windows
+3
4d ago
DRM:
Steam
JoyBuggy
C$48.38 ~C$43.49
-10%
Allyouplay
Subnautica: Below Zero
Windows
+3
4w ago
DRM:
Steam
Allyouplay
C$48.36
Steam
Subnautica Deep Ocean Bundle
Windows
+3
1d ago
DRM:
Steam
Steam
C$107.97 C$53.97
-50%

Keyshops (33)

DRM:
Kinguin
Subnautica: Below Zero PC Steam Altergift
Windows
+3
2h ago
DRM:
Steam
Kinguin
C$48.23 ~C$13.31
-72%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
G2A
Subnautica: Below Zero (PC) - Steam Gift - NORTH AMERICA
Windows
+3
5h ago
DRM:
Steam
G2A
C$39.99 C$14.23
-64%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy
GAMIVO
Subnautica: Below Zero Global (Steam Gift)
Windows
+3
2h ago
DRM:
Steam
GAMIVO
C$39.99 ~C$14.55
-63%
-9% with XDDealscopy
-9% with XDDealscopy
G2A
Subnautica: Below Zero Steam Gift ROW
Windows
+3
5h ago
DRM:
Steam
G2A
C$39.99 C$14.64
-63%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy
G2A
Subnautica: Below Zero (PC) - Steam Gift - GLOBAL
Windows
+3
5h ago
DRM:
Steam
G2A
C$39.99 C$16.40
-58%
-8% with G2A8XDDcopy
-8% with G2A8XDDcopy
G2Play
Subnautica: Below Zero PC Steam Altergift
Windows
+3
23h ago
DRM:
Steam
G2Play
C$48.32 ~C$16.80
-65%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Gameseal
Subnautica: Below Zero (PC) Steam Key - GLOBAL
Windows
+3
6w ago
DRM:
Steam
Gameseal
C$39.99 ~C$17.08
-57%
-17% with SEAL17XDDcopy
-17% with SEAL17XDDcopy

Packs (1)

About Subnautica: Below Zero

Subnautica: Below Zero - about the game

Subnautica: Below Zero is a single-player survival adventure game that takes you to the frozen depths of an alien ocean world. Developed by Unknown Worlds, this indie title builds on the Subnautica universe with a focus on exploration, crafting, and survival in harsh arctic conditions on Planet 4546B. You play as a researcher unraveling the mystery of your sister's disappearance amid abandoned facilities and strange alien discoveries.

Gameplay

In Subnautica: Below Zero, core mechanics revolve around gathering resources to craft tools, habitats, and vehicles while managing survival needs like health, oxygen, food, water, and temperature. Cold weather adds a layer of challenge, requiring you to craft items such as cold suits or use natural elements like Thermal Lilies to stay warm. Exploration involves swimming through diverse biomes, scanning alien lifeforms, and piecing together story clues from logs and databanks. Building plays a key role, as you construct bases for shelter and storage, plus vehicles like the modular Seatruck for underwater travel or the Snowfox for traversing snowy terrain. Encounters with creatures, from friendly Pengwings to dangerous Shadow Leviathans, demand careful navigation and strategy.

Mechanics emphasize improvisation with limited resources, such as scavenging debris from research stations or harvesting materials from the environment. The game integrates research systems where you scan flora, fauna, and artifacts to unlock blueprints and lore. Weather effects, including blizzards, influence above-ground activities, pushing you to adapt your approach in this open-world setting.

Game Modes

Subnautica: Below Zero offers four main game modes to suit different playstyles, all in a single-player format with no multiplayer options. Survival mode requires managing all needs like hunger, thirst, oxygen, and temperature, alongside story progression. Freedom mode removes hunger and thirst but keeps other survival elements intact.

Hardcore mode ramps up difficulty with permadeath and no oxygen warnings, making every decision critical. Creative mode provides unlimited resources, invincibility, and no survival constraints, ideal for free building and exploration without pressure.

Is It Worth Playing?

With a Very Positive rating on Steam from 93,584 reviews and 89% positive feedback overall, Subnautica: Below Zero holds strong appeal for fans of survival and exploration games. Recent reviews from the last 30 days show 86% positive out of 536, indicating sustained interest years after its May 2021 release. Players praise the atmospheric world-building and story depth, though some note it feels shorter than the original Subnautica.

If you enjoy open-ended adventures with crafting and mystery-solving in a sci-fi setting, this game delivers a compelling experience. It received updates post-launch, including bug fixes and features like custom game modes in 2022, but lacks ongoing seasons. For those sensitive to flashing lights, the game includes a warning for photosensitive conditions. Overall, it suits solo players seeking a mix of tension and wonder in an alien environment.

Interface:
CzechGermanEnglishSpanish - SpainSpanish - Latin AmericaFinnishFrenchHungarianItalianJapaneseKoreanPolishPortuguese - BrazilRussianSlovakTurkishUkrainianSimplified ChineseTraditional Chinese
Audio:
English
Subtitles:
CzechGermanEnglishSpanish - SpainSpanish - Latin AmericaFinnishFrenchHungarianItalianJapaneseKoreanPolishPortuguese - BrazilRussianSlovakTurkishUkrainianSimplified ChineseTraditional Chinese

Age rating

Unavailable
Metacritic:
82 7.1
Steam:
Very Positive (89k)

Minimum:

  • Processor: Intel Core i3 4XXX series / AMD Ryzen 3 2.6ghz+
  • Memory: 8 GB RAM
  • Graphics: Intel HD 530 or better
  • DirectX: Version 11
  • Storage: 15 GB available space

Recommended:

  • OS: Windows 10 64-bit
  • Processor: Intel Core i5 4XXX series/ AMD Ryzen 5 @ 3Ghz +
  • Memory: 8 GB RAM
  • Graphics: Nvidia 1050 Ti / AMD Radeon 570, 4GB VRAM
  • DirectX: Version 11
  • Storage: 15 GB available space

Minimum:

  • OS: OS X 10.11 El Capitan
  • Processor: Intel Core i5
  • Memory: 8 GB RAM
  • Graphics: Intel Iris Pro 650 or better
  • Storage: 15 GB available space

Recommended:

  • OS: OS X 10.13 High Sierra
  • Processor: Intel Core i7, 4 cores
  • Memory: 8 GB RAM
  • Graphics: AMD Radeon R9 M395 or better
  • Storage: 15 GB available space
Historical low
Price history from official stores
C$9.99
Steam
yesterday
Price history from keyshops
C$10.24
Kinguin
3 months ago

FAQ

9 questions

Before you start looking for a cheap Subnautica: Below Zero PC key, check the essentials. Developed by Unknown Worlds Entertainment. Published by Unknown Worlds Entertainment. PC released date: 13 May 2021. Genres: Indie, Adventure. Categories: Family Sharing, Steam Trading Cards, Single-player, Remote Play on TV, Steam Achievements, Full controller support, Steam Cloud, Captions available.

Q

Where to buy a cheap Subnautica: Below Zero Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Subnautica: Below Zero key for as low as C$9.99. This deal is available at Steam 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 Subnautica: Below Zero price on PC. Check the Subnautica: Below Zero price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Subnautica: Below Zero 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 Subnautica: Below Zero on sale even outside seasonal promotions. We currently detect 40 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.

Yes, Subnautica: Below Zero is available on GeForce NOW. You can stream the game on PCs, Macs, Chromebooks and mobile devices through NVIDIA's cloud gaming service - no high-end hardware required.

On days when both store types carried the game, the keyshop was cheaper by a median of 66%. We have recorded offers from 21 stores in total, and from 7 in the most recent reading. The spread between offers was wide: from C$1.48 to C$39.99. The cheapest offer came most often from G2Play: 53 of 199 days with data.

Yes. Subnautica: Below Zero has an official page on the Steam Store. You can also buy a Subnautica: Below Zero Steam key from third-party sellers. Our price comparison currently includes 38 offers with Steam DRM. Pick one to ensure your Subnautica: Below Zero download happens on Valve's platform.

Not at this time. Valve marks Subnautica: Below Zero 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 Subnautica: Below Zero 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 Subnautica: Below Zero 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 Subnautica: Below Zero

1 Steam Steam Official
-75% C$9.99
2 Kinguin Kinguin Keyshop
-72% C$13.31
3 G2A G2A Keyshop
-64% C$14.23
4 GAMIVO GAMIVO Keyshop
-63% C$14.55
5 G2Play G2Play Keyshop
-65% C$16.80

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