| Crystal Hammer (1988) | 11,148 | 22 |
| Crystal Journey - Lum's Adventure (2025) | 148 | 4 |
| The Crystal Key (1999) | 597,150 | 72 |
| Crystal Key II: The Far Realm (2004) | 6,866 | 26 |
| Crystal Kingdom Dizzy (1992) | 153,241 | 111 |
| Crystal Maze (2003) | 419,777 | 215 |
| Crystal Mines (1989) | 925,023 | 173 |
| Crystal Mines II (1992) | 9,327 | 31 |
| Crystal Mines II: Buried Treasure (2003) | 3,020 | 9 |
| Crystal Monsters (2008) | 189,837 | 100 |
| Crystal Nexus: Alien Siege (2025) | 0 | 0 |
| Crystal of Atlan (2025) | 7,004,980 | 3,962 |
| Crystal Ortha (2020) | 772,319 | 167 |
| Crystal Plague (2022) | 2,457 | 19 |
| Crystal Project (2022) | 450,846 | 1,470 |
| Crystal Quest (1987) | 673,050 | 689 |
| The Crystal Rainforest (1992) | 873 | 3 |
| Crystal Saga (2011) | 1,047,774 | 193 |
| Crystal Soul Chambers (2024) | 0 | 0 |
| Crystal Story II (2015) | 103,329 | 304 |
| Crystal Story: Dawn of Dusk (2024) | 43,282 | 50 |
| Crystal Story: The Hero and the Evil Witch (2020) | 40,593 | 184 |
| Crystal Survivor (2024) | 4 | 3 |
| Crystal Tales Tactics: Echoes of the Libertas War (2023) | 133 | 2 |
| Crystal Towers 2 (2011) | 33,185 | 24 |
| Crystal Warriors (1991) | 380,054 | 307 |
| Crystal's Castle (2024) | 11,062 | 16 |
| Crystal's Pony Tale (1994) | 423,485 | 271 |
| Crystal: Automaton (2025) | 0 | 0 |
| Crystalfall (2026) | 475 | 2 |
| Crystalis (1990) | 4,218,823 | 3,747 |
| CrystalKeepers (2023) | 60 | 1 |
| Crystalline Bliss (2024) | 0 | 1 |
| Crystallium (2026) | 0 | 0 |
| Crystals and Curses (2018) | 14 | 1 |
| Crystals of Arborea (1990) | 13,966 | 31 |
| Crystals of Zong (1983) | 4,387 | 11 |
| Crystant (2026) | 0 | 0 |
| Crystar (2018) | 3,168,648 | 7,895 |
| Crystorld (2021) | 4,371 | 26 |
| Cryweard (2023) | 7,390 | 12 |
| CS2D (2004) | 4,356,673 | 733 |
| CSD Climbing Sand Dune Cars (2014) | 5,213 | 9 |
| CSI: 3 Dimensions of Murder (2006) | 799,485 | 304 |
| CSI: Crime City (2010) | 13,426 | 7 |
| CSI: Crime Scene Investigation (2003) | 547,000 | 310 |
| CSI: Dark Motives (2004) | 171,417 | 152 |
| CSI: Deadly Intent (2009) | 414,444 | 247 |
| CSI: Deadly Intent - The Hidden Cases (2009) | 7,871 | 5 |
| CSI: Fatal Conspiracy (2010) | 969,967 | 389 |
| CSI: Hard Evidence (2007) | 628,339 | 315 |
| CSI: Miami (2004) | 1,806,994 | 187 |
| CSI: NY (2008) | 70,198 | 49 |
| CSI: Unsolved (2010) | 18,627 | 13 |
| CSR Classics (2013) | 1,413,814 | 925 |
| CSR Racing (2012) | 5,276,427 | 2,520 |
| CSR Racing 2 (2016) | 74,091,025 | 21,175 |
| CT Special Forces (2002) | 790,562 | 735 |
| CT Special Forces: Back to Hell (2003) | 75,046 | 149 |
| CT Special Forces: Fire for Effect (2005) | 238,552 | 368 |
| Cthulhu Dungeon (2022) | 3 | 1 |
| Cthulhu Realms (2016) | 181,698 | 93 |
| Cthulhu Saves Christmas (2019) | 636,982 | 1,121 |
| Cthulhu Saves the World (2010) | 2,043,640 | 1,955 |
| Cthulhu's Reach: Devil Reef (2024) | 12,910 | 45 |
| CTHULOOT (2025) | 473 | 9 |
| Ctrl Alt Ego (2022) | 166,248 | 241 |
| CTU: Marine Sharpshooter (2003) | 134,341 | 70 |
| Cuban Missile Crisis: The Aftermath (2005) | 171,973 | 236 |
| Cube (2001) | 419,234 | 214 |
| Cube (2007) | 65,422,702 | 4,332 |
| Cube & Star: An Arbitrary Love (2014) | 30,694 | 27 |
| Cube 2: Sauerbraten (2004) | 4,126,885 | 1,042 |
| Cube Chaos (2023) | 681,355 | 121 |
| Cube Crawler (2025) | 0 | 0 |
