- Chernobylite: Enhanced Deluxe Edition, v48519 + 8 DLCs/Bonus Content
- Chess Crown
- Chess Ultra – v1.6
- Chessarama: Grandmaster Edition – v1.0.2 + Supporter Pack DLC
- Chicken Police
- Chicory: A Colorful Tale – v1.0.0.53 HotFix + Bonus OST
- Children of Morta – v1.2.72 (6dc759)/Ancient Spirits + 3 DLCs
- Children of Silentown: Supporter Bundle + Bonus Content
- Children of the Sun
- Children of Zodiarcs
- Chinese Paladin: Sword and Fairy 6
- Chivalry 2 – Build 8899150 – Offline Mode only
- Chiyo
- Chocolate Factory + Windows 7 Fix
- Choo-Choo Charles
- Chornobyl Liquidators – v0.9.1 + 0.5 DLC
- Chorus – v1.0.0.11.210770 + The Elder Armor Skin Set DLC
- Christmas Night
- Chronicles of Sagrea + Windows 7 Fix
- Chronique des Silencieux – v3.7.7f
- Chrono Ark: Deluxe Edition – v1.0.9 + Summer Twilight DLC
- Chrono Cross: The Radical Dreamers Edition
- Chronos: Before the Ashes – v262310
- CHUCHEL
- Circuit Superstars + Top Gear Time Attack DLC
- Circus Electrique
- Citadel: Forged with Fire – v32568
- Citadelum – v1.0.0 + Bonus Soundtrack
- Cities XXL
- Cities: Skylines – Deluxe Edition – v1.14.0-f4 + All DLCs
- Cities: Skylines II – v1.0.9f1 + 2 DLCs + Bonus OSTs
- Citizen Sleeper: Deluxe Edition – v1.0.11 GOG + Bonus Content
- Citizens of Earth
- Citizens of Space
- Citizens Unite!: Earth x Space
- Citizens: On Mars
- City Bus Manager: Deluxe Bundle – v2.0.16 + 11 DLCs
- City Bus Simulator 2024
- City Eye
- City of Murals
- City Patrol: Police
- Citystate II
- Claire de Lune
- Clash II + Bonus Soundtrack
- Clash: Artifacts of Chaos + 2 DLCs + Windows 7 Fix
- Class of Heroes 2G: Remaster Edition
- Class of Heroes: Anniversary Edition
- Classified: France ’44: Deluxe Edition + 2 DLCs
- CLeM
- Clid The Snail