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Stardock games, keys and accounts

Stardock is an American developer and publisher best known for grand-scale strategy on PC, from the space 4X of Galactic Civilizations to the real-time fleet battles of Sins of a Solar Empire.

The catalogue gathers Sins of a Solar Empire II, Galactic Civilizations III and IV, Offworld Trading Company, Sorcerer King and more, with releases spanning 2012 to 2025.

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Stardock

Sins of a Solar Empire II Premium Edition Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II Premium Edition Steam Digital Key

STEAM KEY • GLOBAL

$46.21

$30.89

-33%
Sins of a Solar Empire: Rebellion Game and Soundtrack Bundle EU Steam Altergift CASHBACK
STEAM ALTERGIFT

Sins of a Solar Empire: Rebellion Game and Soundtrack Bundle EU Steam Altergift

STEAM ALTERGIFT • EUROPE

$0.00

$43.61

-0%
Galactic Civilizations IV – Tales of the Terran Alliance DLC Steam Digital Key CASHBACK
STEAM KEY

Galactic Civilizations IV – Tales of the Terran Alliance DLC Steam Digital Key

STEAM KEY • GLOBAL

$17.32

$13.03

-25%
Sins of a Solar Empire Ultimate Edition EU Steam Altergift CASHBACK
STEAM ALTERGIFT

Sins of a Solar Empire Ultimate Edition EU Steam Altergift

STEAM ALTERGIFT • EUROPE

$0.00

$55.58

-0%
Sins of a Solar Empire: Rebellion Game and Soundtrack Bundle Steam Altergift CASHBACK
STEAM ALTERGIFT

Sins of a Solar Empire: Rebellion Game and Soundtrack Bundle Steam Altergift

STEAM ALTERGIFT • GLOBAL

$0.00

$42.11

-0%
Ashes of the Singularity: Escalation – Overlord Scenario Pack DLC Steam Digital Key CASHBACK
STEAM KEY

Ashes of the Singularity: Escalation – Overlord Scenario Pack DLC Steam Digital Key

STEAM KEY • GLOBAL

$5.77

$1.68

-71%
Sins of a Solar Empire II Premium Edition NA Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II Premium Edition NA Steam Digital Key

STEAM KEY • CA/US

$0.00

$46.64

-0%
CASHBACK
STEAM KEY

Sins of a Solar Empire: Rebellion LATAM Steam Digital Key

STEAM KEY • LATAM

$17.32

$7.45

-57%
CASHBACK
STEAM KEY

Ashes of the Singularity: Escalation – Inception DLC Steam Digital Key

STEAM KEY • GLOBAL

$5.77

$1.68

-71%
CASHBACK
STEAM KEY

Sins of a Solar Empire II – Harbinger DLC Steam Digital Key

STEAM KEY • GLOBAL

$23.10

$18.03

-22%
CASHBACK
STEAM KEY

Ashes of the Singularity: Escalation – Soundtrack DLC Steam Digital Key

STEAM KEY • GLOBAL

$5.77

$2.82

-51%
CASHBACK
STEAM KEY

Fallen Enchantress – Map Pack DLC Steam Digital Key

STEAM KEY • GLOBAL

$5.77

$1.76

-69%
Sins of a Solar Empire: Rebellion Ultimate 2013 Edition EU Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire: Rebellion Ultimate 2013 Edition EU Steam Digital Key

STEAM KEY • EUROPE

$0.00

$31.18

-0%
Galactic Civilizations IV – Species Pack DLC Steam Digital Key CASHBACK
STEAM KEY

Galactic Civilizations IV – Species Pack DLC Steam Digital Key

STEAM KEY • GLOBAL

$11.54

$6.31

-45%
Galactic Civilizations IV – Megastructures DLC Steam Digital Key CASHBACK
STEAM KEY

Galactic Civilizations IV – Megastructures DLC Steam Digital Key

STEAM KEY • GLOBAL

$17.32

$12.67

-27%
Galactic Civilizations IV – Warlords DLC Steam Digital Key CASHBACK
STEAM KEY

Galactic Civilizations IV – Warlords DLC Steam Digital Key

STEAM KEY • GLOBAL

$17.32

$12.65

-27%
Multiplicity Steam Digital Key CASHBACK
STEAM KEY

Multiplicity Steam Digital Key

STEAM KEY • GLOBAL

$28.88

$24.13

-16%
Sins of a Solar Empire Ultimate Edition EU Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire Ultimate Edition EU Steam Digital Key

STEAM KEY • EUROPE

$34.66

$25.39

-27%
Sins of a Solar Empire Ultimate 2024 Edition Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire Ultimate 2024 Edition Steam Digital Key

STEAM KEY • GLOBAL

$28.88

$20.81

-28%
Offworld Trading Company Core Game Steam Digital Key CASHBACK
STEAM KEY

Offworld Trading Company Core Game Steam Digital Key

STEAM KEY • GLOBAL

$23.10

$5.29

-77%
Ashes of the Singularity: Escalation – Secret Missions DLC Steam Digital Key CASHBACK
STEAM KEY

Ashes of the Singularity: Escalation – Secret Missions DLC Steam Digital Key

STEAM KEY • GLOBAL

$23.10

$3.03

-87%
Sins of a Solar Empire II – Reinforcements DLC Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II – Reinforcements DLC Steam Digital Key

STEAM KEY • GLOBAL

$11.54

$9.15

-21%
Sins of a Solar Empire Ultimate Edition Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire Ultimate Edition Steam Digital Key

STEAM KEY • GLOBAL

$34.66

$23.71

-32%
The Political Machine 2024 Steam Digital Key CASHBACK
STEAM KEY

The Political Machine 2024 Steam Digital Key

STEAM KEY • GLOBAL

$28.88

$4.60

-84%
Sins of a Solar Empire: Rebellion (All Languages) Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire: Rebellion (All Languages) Steam Digital Key

STEAM KEY • GLOBAL

$17.32

$6.48

-63%
Ashes of the Singularity: Escalation – Dawn of the Singularity eBook DLC Steam Digital Key CASHBACK
STEAM KEY

Ashes of the Singularity: Escalation – Dawn of the Singularity eBook DLC Steam Digital Key

STEAM KEY • GLOBAL

$5.77

$1.98

-66%
Galactic Civilizations IV: Supernova Edition Steam Digital Key (valid until April, 2027) CASHBACK
STEAM KEY

Galactic Civilizations IV: Supernova Edition Steam Digital Key (valid until April, 2027)

STEAM KEY • GLOBAL

$34.66

$3.72

-89%
Elemental: Reforged Steam Digital Key CASHBACK
STEAM KEY

Elemental: Reforged Steam Digital Key

STEAM KEY • GLOBAL

$28.88

$10.31

-64%
Sins of a Solar Empire II – Paths to Power DLC Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II – Paths to Power DLC Steam Digital Key

STEAM KEY • GLOBAL

$11.54

$7.45

-35%
Sins of a Solar Empire II Premium Edition EU Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II Premium Edition EU Steam Digital Key

STEAM KEY • EUROPE

$46.21

$31.95

-31%
Galactic Civilizations IV: Supernova Edition EU Steam Digital Key CASHBACK
STEAM KEY

Galactic Civilizations IV: Supernova Edition EU Steam Digital Key

STEAM KEY • EUROPE

$34.66

$4.38

-87%
Dead by Daylight – The HALLOWEEN Chapter DLC EU XBOX One / Xbox Series X|S Digital Key CASHBACK
XBOX KEY

Dead by Daylight – The HALLOWEEN Chapter DLC EU XBOX One / Xbox Series X|S Digital Key

XBOX KEY • EUROPE

$0.00

$134.74

-0%
Sins of a Solar Empire II Premium Edition Steam Account CASHBACK
STEAM ACCOUNT

Sins of a Solar Empire II Premium Edition Steam Account

STEAM ACCOUNT • GLOBAL

$0.00

$60.21

-0%
Sins of a Solar Empire II Steam Account CASHBACK
STEAM ACCOUNT

Sins of a Solar Empire II Steam Account

STEAM ACCOUNT • GLOBAL

$28.88

$12.39

-57%
Sins of a Solar Empire II Steam Altergift CASHBACK
STEAM ALTERGIFT

Sins of a Solar Empire II Steam Altergift

STEAM ALTERGIFT • GLOBAL

$0.00

$55.58

-0%
Sins of a Solar Empire II EU Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II EU Steam Digital Key

STEAM KEY • EUROPE

$28.88

$16.10

-44%
Sins of a Solar Empire II Steam Digital Key CASHBACK
STEAM KEY

Sins of a Solar Empire II Steam Digital Key

STEAM KEY • GLOBAL

$28.88

$16.35

-43%
Galactic Civilizations IV: Supernova Edition Steam Altergift CASHBACK
STEAM ALTERGIFT

Galactic Civilizations IV: Supernova Edition Steam Altergift

STEAM ALTERGIFT • GLOBAL

$0.00

$44.69

-0%
Galactic Civilizations IV: Supernova Edition Steam Account CASHBACK
STEAM ACCOUNT

Galactic Civilizations IV: Supernova Edition Steam Account

STEAM ACCOUNT • GLOBAL

$34.66

$3.65

-89%
Offworld Trading Company Ultimate Edition Steam Digital Key CASHBACK
STEAM KEY

Offworld Trading Company Ultimate Edition Steam Digital Key

STEAM KEY • GLOBAL

$46.21

$42.86

-7%
Can't decide?
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About Stardock

Stardock works mostly in strategy and simulation, with a leaning towards deep systems, empire building and economic competition. Its name is tied to the Galactic Civilizations series of turn-based space 4X games and to Sins of a Solar Empire, the real-time strategy series developed by Ironclad Games. Stardock Entertainment also publishes fantasy strategy such as Sorcerer King and Elemental: Reforged, tower defence in Siege of Centauri and political simulation in The Political Machine 2024.

Alongside these sit titles from Mohawk Games, including Offworld Trading Company, a market-driven strategy game about cornering the Martian economy, and the MOBA-influenced Demigod. The range also reaches into indie titles and utilities such as Multiplicity.

What is in the catalogue

The listed line-up centres on strategy games for PC: Sins of a Solar Empire II and Sins of a Solar Empire: Rebellion, Galactic Civilizations III and Galactic Civilizations IV: Supernova Edition, Ashes of the Singularity: Escalation, Siege of Centauri and Sorcerer King. Simulation, RPG, adventure and action entries fill out the rest, including Offworld Trading Company, The Political Machine 2024, Elemental: Reforged, Demigod and Sleeping Dogs Definitive Edition.

A large share of the listings are expansions, editions and DLC packs rather than base games, such as the Secret Missions content for Ashes of the Singularity: Escalation and the Ultimate 2013 Edition content for Sins of a Solar Empire: Rebellion. Add-ons need the matching base game on the same account before they can be used.

Everything here runs on PC, with Steam keys covering the bulk of the range and Sleeping Dogs Definitive Edition also appearing for GOG.com.

How buying works

Most titles arrive as a key redeemed on the platform named in the listing, usually Steam, after which the game stays in that library; the Steam key activation guide walks through the steps. Sins of a Solar Empire II and Galactic Civilizations IV: Supernova Edition also appear as accounts, which come with the game already on it and are signed into rather than redeemed, and as Altergift, where the title is sent as a gift to your own account.

Games are sold per region, and a key has to match the region of the account it is being activated on, so check the region of the listing against your account before buying. The notes on region locking explain how the restrictions work.

Common questions

Which platform do these games activate on?
Almost all of the Stardock titles listed activate on Steam. Sleeping Dogs Definitive Edition is also available for GOG.com, and each listing states the platform it is for.
Will a key work in another country?
Only if the key and the account share the same region. A key from one region cannot be redeemed on an account set to a region it does not cover.
What is the difference between a key and an account?
A key is a code you redeem so the game joins your own library. An account comes with the game already on it, so you sign in with the details provided instead of redeeming anything.
Do expansions and DLC need the base game?
Yes. Add-ons such as the Secret Missions content for Ashes of the Singularity: Escalation require the matching base game on the same account.
When do I get my key or account details?
The key or account details are delivered to your order once payment completes.

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