- Comanche – v1.0.0.49195
- Combat Mission: Battle for Normandy – Complete, v4.05 (Steam-Matrix/GE4) + 5 DLCs
- Combat Mission: Cold War – v1.02.00
- Combat Mission: Final Blitzkrieg – Complete, v2.11 + Downfall DLC
- Combat Mission: Red Thunder – Complete – v2.13 (Steam-Matrix/GE4) + 2 DLCs
- Command & Conquer 3: Tiberium Wars + Kane’s Wrath (v1.9.2801.21826/v1.02)
- Command & Conquer: Red Alert 3 + Uprising Add-on – v1.12/v1.0
- Command & Conquer: Remastered Collection – v1.153 Build 732159
- Command: Modern Operations – v1.07 Build 1567 + 26 DLCs
- Commander Quest – v1.0.25.704
- Commando Hero 2: First Blood
- Commandos 2: HD Remaster – v1.01
- Commandos 3: HD Remaster – v1.00.045
- Commandos: Origins – Deluxe Edition & Classified Archives, v1.0.0.74101 + 3 DLCs/Bonuses
- Common’hood – v1.0.3
- Company of Crime – v1.0.0.1041
- Company of Heroes 2: Master Collection – v4.0.0.21748 + All DLCs
- Company of Heroes 3 – v1.4.2.21612/Denuvoless
- Compass of Destiny: Istanbul – v1.0_121223 + Windows 7 Fix
- Computer Repair Shop – v1.01
- Conan Chop Chop
- Conan Exiles: Complete Edition – v4.0.0 (v513329/37621, Age of War Update) + All DLCs + Bonus Content
- Conan Unconquered – v1.143.703634 (Belit’s Fury)
- Conarium – v1.0.0.3
- Conception II: Children of the Seven Stars
- Cone Crushers: Autocross
- Confabulation – v1.0.1
- Conglomerate 451 – v1.5.0
- Congo
- Connection: The Nightmare Within
- Conquistadorio – v22.101
- CONSCRIPT: Officer Edition – v1.0.0.2 + 3 DLCs/Bonuses
- CONSORTIUM Remastered – v1.0.1
- Constructor HD – v25.04.2018 + All DLCs
- Constructor Plus
- CONTORTED
- Contra: Operation Galuga
- Contra: Rogue Corps
- Contraband Police – Build 17173236
- ContractVille – v1.0 (Release)
- CONTROL: Ultimate Edition – v1.12 (Steam) + 2 DLCs + Unlockers
- CONVERGENCE: A League of Legends Story – Version a7e37f30e71
- Converter – v1.25
- Conway: Disappearance at Dahlia View
- Cook, Serve, Delicious! 3?!
- Cookie Clicker – v2.04
- Cookie Cutter
- Cooking Companions
- Cooking Simulator – v6.0.1 + 6 DLCs
- Copycat – Game & OST