| Crystal Defense (2019) | 6,827 | 38 |
| Crystal Eyes (2024) | 953,109 | 60 |
| Crystal Guard TD (2024) | 1 | 1 |
| Crystal Guardians (2024) | 2,744,888 | 885 |
| Crystal Hammer (1988) | 11,124 | 22 |
| Crystal Journey - Lum's Adventure (2025) | 148 | 4 |
| The Crystal Key (1999) | 593,695 | 69 |
| Crystal Key II: The Far Realm (2004) | 6,859 | 25 |
| Crystal Kingdom Dizzy (1992) | 151,273 | 101 |
| Crystal Maze (2003) | 419,121 | 201 |
| Crystal Mines (1989) | 924,296 | 168 |
| Crystal Mines II (1992) | 7,225 | 29 |
| Crystal Mines II: Buried Treasure (2003) | 3,020 | 9 |
| Crystal Monsters (2008) | 187,067 | 94 |
| Crystal Nexus: Alien Siege (2025) | 0 | 0 |
| Crystal of Atlan (2025) | 4,167,302 | 1,970 |
| Crystal Ortha (2020) | 772,318 | 167 |
| Crystal Plague (2022) | 2,443 | 19 |
| Crystal Project (2022) | 445,890 | 1,381 |
| Crystal Quest (1987) | 661,191 | 575 |
| The Crystal Rainforest (1992) | 873 | 3 |
| Crystal Saga (2011) | 1,019,429 | 190 |
| 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) | 40,223 | 182 |
| Crystal Survivor (2024) | 4 | 3 |
| Crystal Tales Tactics: Echoes of the Libertas War (2023) | 125 | 2 |
| Crystal Towers 2 (2011) | 33,180 | 24 |
| Crystal Warriors (1991) | 379,487 | 294 |
| Crystal's Castle (2024) | 9,931 | 15 |
| Crystal's Pony Tale (1994) | 421,698 | 267 |
| Crystalis (1990) | 4,144,432 | 3,577 |
| CrystalKeepers (2023) | 0 | 0 |
| Crystalline Bliss (2024) | 0 | 1 |
| Crystals and Curses (2018) | 14 | 1 |
| Crystals of Arborea (1990) | 13,957 | 29 |
| Crystals of Zong (1983) | 4,387 | 11 |
| Crystar (2018) | 3,147,199 | 7,630 |
| Crystorld (2021) | 4,371 | 26 |
| Cryweard (2023) | 7,390 | 12 |
| CS2D (2004) | 4,353,538 | 728 |
| CSD Climbing Sand Dune Cars (2014) | 5,213 | 9 |
| CSI: 3 Dimensions of Murder (2006) | 799,142 | 293 |
| CSI: Crime City (2010) | 13,422 | 7 |
| CSI: Crime Scene Investigation (2003) | 529,974 | 290 |
| CSI: Dark Motives (2004) | 171,378 | 147 |
| CSI: Deadly Intent (2009) | 413,853 | 214 |
| CSI: Deadly Intent - The Hidden Cases (2009) | 7,867 | 4 |
| CSI: Fatal Conspiracy (2010) | 969,843 | 386 |
| CSI: Hard Evidence (2007) | 628,223 | 300 |
| CSI: Miami (2004) | 1,806,519 | 180 |
| CSI: NY (2008) | 70,198 | 49 |
| CSI: Unsolved (2010) | 18,627 | 13 |
| CSR Classics (2013) | 1,413,415 | 886 |
| CSR Racing (2012) | 5,268,904 | 2,361 |
| CSR Racing 2 (2016) | 73,865,667 | 20,821 |
| CT Special Forces (2002) | 769,923 | 701 |
| CT Special Forces: Back to Hell (2003) | 70,932 | 140 |
| CT Special Forces: Fire for Effect (2005) | 234,128 | 360 |
| Cthulhu Dungeon (2022) | 3 | 1 |
| Cthulhu Realms (2016) | 181,698 | 93 |
| Cthulhu Saves Christmas (2019) | 634,627 | 1,090 |
| Cthulhu Saves the World (2010) | 2,043,511 | 1,937 |
| Cthulhu's Reach: Devil Reef (2024) | 10,752 | 27 |
| CTHULOOT (2025) | 472 | 8 |
| Ctrl Alt Ego (2022) | 162,744 | 217 |
| CTU: Marine Sharpshooter (2003) | 134,242 | 69 |
| Cuban Missile Crisis: The Aftermath (2005) | 171,880 | 236 |
| Cube (2001) | 414,489 | 212 |
| Cube (2007) | 65,318,940 | 4,283 |
| Cube & Star: An Arbitrary Love (2014) | 30,694 | 27 |
| Cube 2: Sauerbraten (2004) | 4,090,305 | 1,028 |
| Cube Chaos (2023) | 671,995 | 113 |
| Cube Creator DX (2017) | 1,095,160 | 14 |
