Firaxis

Sid Meier's Civilization V - Complete Edition (PC)

Sid Meier's Civilization VII (PS5)

Sid Meier's Civilization IV: Warlords (Expansion) (PC)

Sid Meier's Civilization V: Gods and Kings (Expansion) (PC)

XCOM: Enemy Unknown (PC)

XCOM: Enemy Unknown (PS3)

Sid Meier's Civilization III - Complete Edition (PC)

Sid Meier's Civilization V: Brave New World (Expansion) (PC)

Sid Meier's Civilization IV: Beyond the Sword (Expansion) (PC)

XCOM: Enemy Unknown - Slingshot (PC)

Civilization Revolution (Xbox 360)

Civilization Revolution (PS3)

Civilization V Expansion: Brave New World (Mac)

Sid Meier's Civilization IV - Complete Edition (PC)

XCOM: Enemy Within (PC)

Sid Meier's Ace Patrol (PC)

Sid Meier's Civilization V - Map Pack: Scrambled Continents (PC)

Civilization V - Map Pack: Scrambled Nations (Mac)

Sid Meier's Ace Patrol: Pacific Skies (PC)

Sid Meier's Civilization V - Map Pack: Scrambled Nations (PC)

XCOM: Enemy Unknown - Complete Edition (PC)

Sid Meier's Civilization: Beyond Earth (PC)

Sid Meier's Civilization V - Scenario Pack: Polynesia (PC)

Sid Meier's Civilization V - Scenario Pack: Spain & Inca (PC)

Sid Meier's Civilization: Beyond Earth - Map Pack: Exoplanets (PC)

Sid Meier’s Starships + Sid Meier's Civilization: Beyond Earth (PC)

Sid Meier's Starships (PC)

Sid Meier's Civilization IV: Colonization (PC)

XCOM 2 (PC)

Sid Meier's Civilization V - Scenario Pack: Korea (PC)

Sid Meier's Civilization V: Cradle of Civilization: The Americas (Expansion) (PC

Sid Meier's Civilization V: Cradle of Civilization: The Mediterranean (Expansion (PC)

Sid Meier's Civilization: Beyond Earth Expansion: Rising Tide (Mac)

Sid Meier's Civilization: Beyond Earth - The Collection (PC)

Sid Meier's Civilization VI (PC)

Sid Meier's Civilization VI - Digital Deluxe (PC)

XCOM 2: Alien Hunters (Expansion) (PC)

Sid Meier's Civilization IV (PC)

XCOM 2: Anarchy's Children (Expansion) (PC)

Sid Meier's Pirates! (PC)

Sid Meier's Civilization VI: Vikings Scenario Pack (Expansion) (PC)

XCOM 2: Shen's Last Gift (Expansion) (PC)

XCOM 2: War of the Chosen (Expansion) (PC)

Sid Meier's Civilization VI: Nubia Civilization & Scenario Pack (Expansion) (PC)

Sid Meier's Civilization VI Exp: Khmer & Indonesia Civilization & Scenario (PC)

Sid Meier's Civilization Beyond Earth: Rising Tide (Expansion) (PC)

Sid Meier's Civilization VI: Rise and Fall (Expansion) (PC)

XCOM 2 - Collection (PC)

XCOM 2: Reinforcement Pack (Expansion) (PC)

XCOM 2: Resistance Warrior Pack (Expansion) (PC)

XCOM 2: War of the Chosen - Tactical Legacy Pack (Expansion) (PC)

XCOM: Enemy Unknown - Elite Soldier Pack (Expansion) (PC)

Sid Meier's Civilization VI (PS4)

Sid Meier's Civilization VI - Platinum Edition (PC)

XCOM: Chimera Squad (PC)

Sid Meier's Civilization VI: Byzantium & Gaul Pack (Expansion) (PC)

Sid Meier's Civilization VI Exp: Maya & Gran Colombia (PC)

Sid Meier's Civilization V (PC)

Sid Meier's Civilization VI: Portugal Pack (Expansion) (PC)

XCOM: Ultimate Collection (PC)

Sid Meier's Civilization V - Scenario Pack: Mongols (PC)

Sid Meier's Civilization V - Scenario Pack: Babylon (PC)

Sid Meier's Civilization V - Game of the Year Edition (PC)