- 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
- CityDriver: Deluxe-Bundle, v25.06.26.43749 + 10 DLCs
- Citystate II
- Clair Obscur: Expedition 33 – Deluxe Edition, v56180 + DLC
- Claire de Lune
- Clash II + Bonus Soundtrack
- Clash: Artifacts of Chaos – Zeno Edition, v28790 + 2 DLCs + Bonus Content + 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
- Clink + CrackFix
- Clive ‘N’ Wrench
- Clock Tower: Rewind – Build 16699624
- Close to the Sun
- Closer the Distance – v1.0.0+30987
- Cloud Cutter
- Cloudpunk – BuildID 6754726 + City of Ghosts DLC
- Clunky Hero: Game, Art and Music Bundle – v1.0.2 + Bonus Content
- Coal Mining Simulator
- Coastline Flight Simulator
- Cobra Kai 2: Dojos Rising + Nemesis Pack DLC
- Cobra Kai: The Karate Kid Saga Continues
- COCOON
- CoD Black Ops 3 Repack Status
- Code Alkonost: Awakening of Evil
- Code of Princess EX + Multiplayer
- Code Rivals: Robot Programming Battle + Bonus OST
- CODE VEIN: Deluxe Edition, v1.53.61787 + 11 DLCs + Bonus Soundtrack
- Codex Lost – v1.0.3 + Windows 7 Fix
- Coffee Noir: Business Detective Game
- Coffee Shop Tycoon – v1.0 (Release)
- Coffence
- Cold House
- ColdSide + Update 5
- Collector Thief
- Colonization Simulator
- Colony Ship: A Post-Earth Role Playing Game – v1.0.6
- Colony Siege – v1.20.1
- ColorBlend FX: Desaturation – v1.0.0-rc1
- Colossal Cave, v2.0 + VR
- Comanche – v1.0.0.49195
- Combat Mission: Battle for Normandy – Complete, v4.05 (Steam-Matrix/GE4) + 5 DLCs