Buy Sovereign Brain Empire PC Key

Where to buy Sovereign Brain Empire at the best price? As of 1 Aug. 2026 the cheapest option is C$5.79 at Eneba, out of 4 offers across 4 stores. The range reaches C$12.99, so the distance between the first and the last listing can be wide even with a handful of sellers. You activate the key in Steam or another client, and it is worth checking the price history first. The price ranks among the lowest we have recorded, cheaper on only 10% of days with data. 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 Feb. 2025
Mountain and Sea Studio
Steam:
Positive (351)
Buy in Official Store:
C$12.99
Buy in Keyshops:
-63%
C$5.79
In keyshops, the price is close to its historical low.
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
Sovereign Brain Empire
Windows
+1
2w ago
DRM:
Steam
Steam
C$12.99

Keyshops (3)

DRM:
Steam
Steam
Sovereign Brain Empire Steam Key (PC) GLOBAL
5.0
Windows
+1
15h ago
DRM:
Steam
Eneba
C$15.74 ~C$5.79
-63%
-10% with XDD10copy
-10% with XDD10copy
G2Play
Sovereign Brain Empire PC Steam CD Key
Windows
+1
13h ago
DRM:
Steam
G2Play
C$15.74 ~C$6.67
-57%
-8% with XD8DEALScopy
-8% with XD8DEALScopy
Kinguin
Sovereign Brain Empire PC Steam CD Key
Windows
+1
14h ago
DRM:
Steam
Kinguin
C$15.74 ~C$6.67
-57%
-8% with XD8DEALScopy
-8% with XD8DEALScopy

About Sovereign Brain Empire

Sovereign Brain Empire - about the game
In a future ruled by the Sovereign Brain AI, intelligence dictates social rank. Players take on the role of an adult-bodied one-year-old baby with Monarch-level potential, adopted by Lin Lingling and Xiao Xiaoxiao amid a society that unquestioningly follows the system's classifications. Interact with characters like nanny robot Wei Weiwei, community admin Jia Jiajia, star aunt Qin Qingqing, and your learning coach in this first-person interactive narrative. Choices drive the story toward varied endings, while intelligence tests and societal exploration trigger coach encouragement and Reward Drops. This PC strategy RPG simulation blends casual adventure with simulation elements for players who enjoy choice-driven narratives and character-focused progression.

This is a first-person interactive narrative game, set in a new era where humanity is governed by the Sovereign Brain AI. The social hierarchies here is determined by intelligence. Although you possess an adult body, you are classified by SB as a one-year-old baby, and adopted by Xiaoxiao and Lingling. In an era where all accept the system’s arrangements without a shadow of doubt, you’ll relish the supreme privileges of a "Monarch-level" potential baby. How can one be more ecstatic!!!

Main Character Introductions:

Lin Lingling:

Your "mother", she appears extraordinary, with intelligence surpassing that of a typical "Enlightener", yet still labeled as "low-intelligence" despite her vast knowledge.

Xiao Xiaoxiao:

Your "father", biologically female and heterosexual, but sociologically male, as the SB system labeled her as such. As a result, everyone, including herself, treats her as a man.

Wei Weiwei:

Your household’s "nanny robot", serial number MVV1984, a former wanderer,  later reintegrated into human society, now assigned to your community as a nanny robot after passing the "Reverse-Turing" test.

Jia Jiajia:

The administrator of you community, an awakened "servant", with an intelligence level of eighty. Her path to advancement is currently hindered by multiplication.

Qin Qingqing:

Your "aunt", the younger sister of Lin Lingling, a hot star of the day, whose hit film swept five major awards worldwide.

The Handler:

Your "learning" coach, also the Sovereign Brain government service representative for your region. 

Game Features:
  • Choice-Driven Narrative: The decisions will shape the narrative and lead to diverse outcomes.

  • "Reward Drop": As you learn about the SB society and undergo intelligence tests, you will receive encouragement from your coach, and upon completion, you will earn generous "Reward Drop".

About Us

We are Mountain & Sea Studio, dedicated to crafting live-action interactive movie games. Our representative work is "Underworld Island" and “Superscout”.

Telling good stories with heart and soul, making great games with dedication, is our original aspiration.

Interface:
GermanEnglishFrenchIndonesianItalianJapaneseKoreanRussianSimplified ChineseTraditional Chinese
Audio:
Simplified ChineseTraditional Chinese
Subtitles:
GermanEnglishFrenchIndonesianItalianJapaneseKoreanRussianSimplified ChineseTraditional Chinese

Age rating

Unavailable
Steam:
Positive (351)

Minimum:

  • OS: Windows 10
  • Processor: Inter Core i3
  • Memory: 4 GB RAM
  • Graphics: 独立显卡或集成显卡
  • DirectX: Version 11
  • Storage: 60 GB available space
  • Additional Notes: Broadband Internet connection; 最好能支持10bit播放,不然会降低画面质量

Recommended:

  • OS: Windows 10/Windows 11
  • Processor: Inter Core i5或AMD equivalent 或以上
  • Memory: 16 GB RAM
  • Graphics: 独立显卡
  • DirectX: Version 11
  • Storage: 60 GB available space
  • Additional Notes: Broadband Internet connection; 最好能支持10bit播放,不然会降低画面质量
Historical low
Price history from official stores
C$5.19
Steam
1 months ago
Price history from keyshops
C$5.75
Eneba
1 weeks ago

FAQ

9 questions

Before you start looking for a cheap Sovereign Brain Empire PC key, check the essentials. Developed by Mountain and Sea Studio. Published by Mountain and Sea Studio. PC released date: 21 Feb. 2025. Genres: Strategy, Indie, RPG, Casual, Simulation, Adventure. Categories: Family Sharing, Single-player, Steam Achievements, Steam Cloud.

Q

Where to buy a cheap Sovereign Brain Empire Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a Sovereign Brain Empire key for as low as C$5.79. This deal is available at Eneba 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 Sovereign Brain Empire price on PC. Check the Sovereign Brain Empire price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the Sovereign Brain Empire Steam price is C$12.99. 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 Sovereign Brain Empire on sale even outside seasonal promotions. We currently detect 4 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, Sovereign Brain Empire is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

The cheapest offer came most often from Eneba: 67 of 103 days with data. The current price ranks among the lowest we have seen: it was cheaper on only 10% of days with data. The price reached its historical low on only 1 day out of 103 days with data. We have been tracking this game since March 2, 2025 and collected 218 readings from 4 stores.

Yes. Sovereign Brain Empire has an official page on the Steam Store. You can also buy a Sovereign Brain Empire Steam key from third-party sellers. Our price comparison currently includes 4 offers with Steam DRM. Pick one to ensure your Sovereign Brain Empire download happens on Valve's platform.

Yes. Sovereign Brain Empire is Steam Deck Verified - it launches out-of-the-box, displays correct controller glyphs and runs stable. Sovereign Brain Empire works perfectly on Steam Deck.

According to our data Sovereign Brain Empire 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 Sovereign Brain Empire 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 Sovereign Brain Empire

1 Eneba Eneba Keyshop
-63% C$5.79
2 G2Play G2Play Keyshop
-57% C$6.67
3 Kinguin Kinguin Keyshop
-57% C$6.67
4 Steam Steam Official
C$12.99

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