| Crystal Towers 2 (2011) | 33,185 | 24 |
| Crystal Warriors (1991) | 380,085 | 307 |
| Crystal's Castle (2024) | 11,071 | 17 |
| Crystal's Pony Tale (1994) | 423,505 | 271 |
| Crystal: Automaton (2025) | 0 | 0 |
| Crystalfall (2026) | 749 | 4 |
| Crystalis (1990) | 4,220,523 | 3,750 |
| 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) | 3,169,732 | 7,895 |
| Crystorld (2021) | 4,371 | 26 |
| Cryweard (2023) | 7,390 | 12 |
| CS2D (2004) | 4,356,684 | 733 |
| CSD Climbing Sand Dune Cars (2014) | 5,213 | 9 |
| CSI: 3 Dimensions of Murder (2006) | 799,492 | 304 |
| CSI: Crime City (2010) | 13,426 | 7 |
| CSI: Crime Scene Investigation (2003) | 547,891 | 311 |
| CSI: Dark Motives (2004) | 171,417 | 152 |
| CSI: Deadly Intent (2009) | 414,444 | 247 |
| CSI: Deadly Intent - The Hidden Cases (2009) | 7,879 | 5 |
| CSI: Fatal Conspiracy (2010) | 969,983 | 389 |
| CSI: Hard Evidence (2007) | 628,387 | 316 |
| CSI: Miami (2004) | 1,807,003 | 187 |
| CSI: NY (2008) | 70,198 | 49 |
| CSI: Unsolved (2010) | 18,627 | 13 |
| CSR Classics (2013) | 1,413,814 | 925 |
| CSR Racing (2012) | 5,276,565 | 2,535 |
| CSR Racing 2 (2016) | 74,094,936 | 21,177 |
| CT Special Forces (2002) | 791,732 | 737 |
| 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) | 12,913 | 45 |
| CTHULOOT (2025) | 473 | 9 |
| Ctrl Alt Ego (2022) | 166,248 | 241 |
| CTU: Marine Sharpshooter (2003) | 134,343 | 70 |
| Cuban Missile Crisis: The Aftermath (2005) | 171,973 | 236 |
| Cube (2001) | 419,256 | 214 |
| Cube (2007) | 65,422,812 | 4,332 |
| Cube & Star: An Arbitrary Love (2014) | 30,694 | 27 |
| Cube 2: Sauerbraten (2004) | 4,128,301 | 1,042 |
| Cube Chaos (2023) | 681,355 | 121 |
| Cube Crawler (2025) | 0 | 0 |
| Cube Creator DX (2017) | 1,095,160 | 14 |
| Cube Creator X (2018) | 1,812,925 | 40 |
| Cube Crusaders (2026) | 0 | 0 |
| Cube Defender 2000 (2018) | 0 | 0 |
| Cube Escape: Arles (2015) | 1,647,904 | 391 |
| Cube Escape: Case 23 (2015) | 8,689,673 | 761 |
| Cube Escape: Harvey's Box (2015) | 2,887,654 | 404 |
| Cube Escape: Paradox (2018) | 18,804,179 | 3,304 |
| Cube Escape: Seasons (2015) | 22,222,984 | 912 |
| Cube Escape: The Cave (2017) | 8,325,006 | 665 |
| Cube Escape: The Lake (2015) | 7,989,435 | 567 |
| Cube Escape: The Mill (2015) | 1,560,594 | 394 |
| Cube Escape: Theatre (2016) | 4,640,568 | 335 |
| Cube Fight (2025) | 0 | 0 |
| Cube Full of Mines (2018) | 0 | 0 |
| Cube Gothic (2020) | 611,156 | 32 |
| Cube Guardian: Tower Defender (2025) | 0 | 0 |
| Cube Guy (2025) | 471,959 | 10 |
| Cube Hero Odyssey (2024) | 12 | 1 |
| Cube Hopper (2026) | 97 | 2 |
| Cube Kingdoms (2026) | 5,229 | 8 |
| Cube Life: Island Survival (2015) | 1,818,396 | 841 |
| Cube Man (2020) | 38,067 | 81 |
| Cube Mission (2019) | 752,829 | 90 |
