| Deckbuilder Fantasy (2024) | 886 | 4 |
| Deckception (2024) | 106 | 3 |
| Decks & Daggers (2021) | 10,183 | 46 |
| Decks of the Damned (2025) | 107,869 | 18 |
| Decksplorers: Into the Shell (2025) | 20,053 | 2 |
| Decktamer (2025) | 409,867 | 157 |
| Decline's Drops (2024) | 26,072 | 151 |
| Deco Online (2008) | 293,402 | 17 |
| Decoherence (2019) | 136,633 | 47 |
| Decollate Decoration (2026) | 45 | 1 |
| Deconstruction Simulator (2025) | 4,270,595 | 1,862 |
| Decopins -Asset Fighters Series (2022) | 378 | 3 |
| Decopins2 (2024) | 108 | 4 |
| Decurion (2025) | 12,368 | 5 |
| Decypher (2024) | 985 | 4 |
| DED (2017) | 9,416,748 | 295 |
| Ded Inside (2019) | 1,772,397 | 15 |
| Deducto (2022) | 11,808,608 | 472 |
| Deeeep.io (2016) | 124,376,693 | 893 |
| Deemo (2013) | 27,318,829 | 4,850 |
| DEEMO -Reborn (2020) | 3,856,615 | 2,032 |
| Deemo II (2022) | 8,368,175 | 4,715 |
| Deemo Reborn (2019) | 810,786 | 1,637 |
| The Deep (1987) | 5,070 | 23 |
| The Deep (2009) | 607,509 | 184 |
| DEEP 8 (2022) | 4,244 | 121 |
| Deep Alchemy Dungeon (2026) | 1,245 | 19 |
| Deep Among the Swarm (2024) | 102,501 | 45 |
| Deep Assault (2023) | 68,250 | 8 |
| Deep Black (2012) | 2,651,578 | 602 |
| Deep Blue (1989) | 63,111,807 | 2,849 |
| Deep Blue 3D Maze in Space (2017) | 1,901 | 2 |
| Deep Blue Fantasy (2023) | 21,430 | 4 |
| Deep Blue Sea II (2011) | 4,029,602 | 119 |
| The Deep Cave (2010) | 2,968,668 | 317 |
| Deep Core (1993) | 661,963 | 120 |
| Deep Dark Space (2025) | 208 | 5 |
| Deep Dark Wrath (2024) | 509 | 5 |
| Deep Deep Deep Nightmare (2025) | 49,708 | 65 |
| Deep Despair (2020) | 80,442 | 37 |
| Deep Despair 2 (2021) | 60,332 | 39 |
| Deep Despair 3 (2024) | 2,843 | 8 |
| The Deep Diving of FloodDragon (2022) | 633 | 1 |
| Deep Diving Simulator (2019) | 455,816 | 225 |
| Deep Diving VR (2019) | 8,742 | 20 |
| Deep Duck Trouble Starring Donald Duck (1993) | 555,861 | 365 |
| Deep Dungeon II: Yuushi no Monshou (1987) | 141,709 | 114 |
| Deep Dungeon III: Yuushi he no Tabi (1988) | 55,444 | 45 |
| Deep Dungeon IV: Kuro no Youjutsushi (1990) | 50,816 | 67 |
| Deep Dungeon: Madou Senki (1986) | 14,852,074 | 1,083 |
| Deep Eclipse: New Space Odyssey (2014) | 1,196 | 3 |
| Deep Fear (1998) | 10,248,748 | 1,337 |
| Deep Fighter (2000) | 66,639 | 116 |
| Deep Freeze (1999) | 9,553,888 | 1,431 |
| Deep GachiGASM (2017) | 24 | 1 |
| Deep II: The Center of the Earth (1993) | 1 | 1 |
| Deep in The Fear (2024) | 119 | 2 |
| Deep in the Forest (2023) | 2,935,260 | 386 |
| Deep Labyrinth (2004) | 150,776 | 91 |
| Deep Nest (2023) | 11,568 | 37 |
| Deep Ones (2017) | 18,586,592 | 645 |
| The Deep Pinball (2009) | 17,577 | 25 |
| Deep Race: Space (2019) | 1,022 | 8 |
| Deep Realms (2011) | 127,306 | 50 |
| Deep Rock Galactic (2020) | 206,344,148 | 123,840 |
| Deep Rock Galactic: Survivor (2024) | 23,735,320 | 13,049 |
| Deep Rune (2021) | 15,803 | 58 |
| Deep Russian Depression (2024) | 4 | 1 |
| Deep Scan (1979) | 32,808 | 68 |
| Deep Sea Arena (2025) | 0 | 0 |
| Deep Sea Tycoon (2003) | 9,033 | 12 |
| Deep Sea Valentine (2021) | 1,334 | 7 |
| Deep Secret (2023) | 606,062 | 67 |
| Deep Sky Derelicts (2018) | 2,160,907 | 2,217 |
| Deep Sleep (2012) | 13,289,733 | 2,884 |
