| Immortal Love: Black Lotus (2018) | 66,346 | 93 |
| Immortal Love: Blind Desire (2017) | 47,243 | 84 |
| Immortal Love: Kiss of the Night (2018) | 92,237 | 91 |
| Immortal Love: Letter from the Past (2015) | 98,577 | 122 |
| Immortal Love: Polar Lights (2023) | 851,132 | 172 |
| Immortal Love: Sparkle of Talent (2021) | 40,740 | 98 |
| Immortal Love: Stone Beauty (2020) | 74,619 | 112 |
| Immortal Love: The Price of a Miracle (2016) | 34,877 | 87 |
| Immortal Love: True Treasure (2022) | 46,653 | 97 |
| The Immortal Mayor (2021) | 801,316 | 270 |
| Immortal Planet (2017) | 404,822 | 342 |
| Immortal Realms: Vampire Wars (2019) | 2,659,288 | 1,054 |
| Immortal Redneck (2017) | 6,838,260 | 1,858 |
| Immortal Soul: Black Survival (2019) | 3,047,522 | 1,970 |
| Immortal Tactics: War of the Eternals (2022) | 257,092 | 37 |
| Immortal: Unchained (2018) | 8,603,316 | 4,146 |
| Immortality (2022) | 68,873,574 | 5,958 |
| Immortals Fenyx Rising (2020) | 166,304,443 | 98,810 |
| Immortals of Aveum (2023) | 19,676,867 | 18,617 |
| The Immortals of Terra: A Perry Rhodan Adventure (2008) | 150,494 | 131 |
| Immune Attack (2008) | 258 | 3 |
| IMMURE (2019) | 1,367,277 | 239 |
| Imo and the King (1995) | 41,300 | 18 |
| iMobsters (2009) | 4,692 | 4 |
| Imogen (1986) | 4,011,210 | 194 |
| Imp of the Sun (2022) | 766,900 | 521 |
| Impact Point (2022) | 18,034 | 63 |
| Impact Winter (2017) | 2,766,250 | 968 |
| Impaler (2022) | 390,588 | 270 |
| Impasto (2022) | 196,767 | 153 |
| Imperator: Rome (2019) | 64,152,174 | 20,750 |
| Imperatum (2018) | 21,306 | 24 |
| Imperia Online (2005) | 747,639 | 355 |
| Imperial Ambitions (2025) | 20,378 | 18 |
| Imperial Arms: Curse of the Conqueror (2022) | 109 | 2 |
| Imperial Glory (2005) | 785,410 | 527 |
| Imperial Grace (2025) | 0 | 0 |
| Imperial SaGa (2015) | 3,846,022 | 1,753 |
| Imperial SaGa Eclipse (2019) | 64,562 | 190 |
| Imperial Settlers: Imperial Miners (2024) | 0 | 1 |
| Imperial Storm (2024) | 5,956 | 3 |
| Imperialism (1997) | 32,376,841 | 425 |
| Imperialism II: Age of Exploration (1999) | 379,056 | 348 |
| Imperialism: Concert of Europe (2024) | 0 | 0 |
| Imperishable Memories (2018) | 317 | 10 |
| Imperishable Night (2004) | 95,255,217 | 8,782 |
| Imperium (1990) | 21,397,762 | 2,060 |
| Imperium (1992) | 285,919 | 334 |
| Imperium AO (2004) | 73,846 | 112 |
| Imperium Galactic War (2013) | 55,694 | 33 |
| Imperium Galactica (1997) | 566,422 | 451 |
| Imperium Galactica II: Alliances (1999) | 746,482 | 514 |
| Imperium Galactum (1984) | 2,484 | 4 |
| Imperium Romanum (2008) | 1,276,090 | 615 |
| Imperiums: Greek Wars (2020) | 1,067,192 | 827 |
| Imperivm: Great Battles of Rome (2005) | 2,029,170 | 818 |
| IMPETUM (2024) | 76 | 1 |
| Impire (2013) | 1,688,827 | 662 |
| Implements of Hell (2021) | 1,113,858 | 248 |
| Implosion (1987) | 15,416,850 | 426 |
| Implosion: Never Lose Hope (2015) | 4,613,778 | 1,521 |
| Import Tuner Challenge (2006) | 1,243,100 | 924 |
| Impossaball (1987) | 4,692 | 22 |
| Impossamole (1990) | 88,681 | 122 |
| Impossiball - Gamers Challenge (2019) | 28,198 | 7 |
| Impossible Creatures (2003) | 13,956,449 | 1,543 |
| The Impossible Dungeon (2012) | 152,221 | 49 |
| The Impossible Game (2009) | 210,077,563 | 4,046 |
| The Impossible Knight Runner (2022) | 42 | 1 |
| Impossible Maze (2020) | 159,797,929 | 107 |
| Impossible Mission (1984) | 6,881,370 | 475 |
| Impossible Mission (2007) | 162,425 | 45 |
| Impossible Mission 2025 (1994) | 33,697 | 42 |
| Impossible Mission II (1988) | 236,111 | 167 |
| Impossible Pixels (2021) | 73,014 | 16 |
