| iDrop Dead (2009) | 2,065 | 1 |
| IDUN - Frontline Survival (2025) | 167,585 | 79 |
| Idylls of the Lunar Maria (2024) | 18 | 1 |
| If Found... (2020) | 1,444,978 | 357 |
| If Fusion Were That Easy (2022) | 1,003 | 19 |
| If It Moves, Shoot It! (1988) | 56,255 | 21 |
| If It Please the Court (2021) | 0 | 0 |
| If My Heart Had Wings -Flight Diary- (2019) | 37,588 | 126 |
| If On A Winter's Night, Four Travelers (2021) | 710,771 | 525 |
| If The Dream Of Star (2024) | 0 | 0 |
| IF/A-18E Carrier Strike Fighter (1998) | 386 | 1 |
| IFSolitaire (2024) | 0 | 0 |
| IfSunSets (2024) | 1,838,606 | 1,224 |
| Iggle Pop! (2004) | 523,662 | 691 |
| Iggy's Reckin' Balls (1998) | 913,283 | 898 |
| IgKnight Food Fight (2020) | 47 | 1 |
| IgKnight Golf Defender (2019) | 1,066 | 5 |
| Ignatius (2020) | 1,186,499 | 186 |
| Igneous (2009) | 103,990 | 49 |
| Ignis (2024) | 1,109,719 | 300 |
| Ignis Dei (2025) | 0 | 0 |
| Ignis Universia: Eternal Sisters Saga (2019) | 2,569 | 30 |
| IGNISTONE (2023) | 37,042 | 140 |
| Ignite (2011) | 7,536,665 | 1,013 |
| Ignited Entry (2024) | 1,300,853 | 362 |
| Ignited in Cavern (2024) | 24 | 1 |
| Ignited Steel: Mech Tactics (2022) | 195,545 | 63 |
| Ignition (1997) | 387,588 | 196 |
| The Ignition Factor (1994) | 587,350 | 358 |
| Igor: Objective Uikokahonia (1994) | 30,156 | 54 |
| Igor: The Game (2008) | 241,499 | 36 |
| IGPX: Immortal Grand Prix (2006) | 145,961 | 126 |
| iGrow Game (2016) | 230 | 3 |
| IGT Slots: Lucky Larry's Lobstermania (2011) | 1,864 | 4 |
| IHAS (2024) | 95,265 | 14 |
| Ihatovo Monogatari (1993) | 239,949 | 135 |
| iHeroes (2011) | 234 | 1 |
| IHF Handball Challenge 12 (2011) | 795,718 | 39 |
| IHF Handball Challenge 14 (2014) | 772,995 | 83 |
| IHRA Drag Raching 2004 (2003) | 272 | 3 |
| IHRA Drag Racing (2001) | 64,718 | 35 |
| IHRA Drag Racing 2 (2002) | 242,111 | 36 |
| IHRA Motorsports Drag Racing (2000) | 20,354 | 7 |
| IHRA Professional Drag Racing 2005 (2004) | 22,810 | 29 |
| IIN (2018) | 22,113 | 26 |
| Iji (2008) | 4,554,984 | 786 |
| Ijiaru Oneesann No Otsumami 2 (2022) | 0 | 0 |
| Ika's Odyssey (2024) | 2 | 1 |
| Ikachan (2000) | 128,822 | 111 |
| Ikai (2021) | 18,253,614 | 2,526 |
| Ikari III: The Rescue (1989) | 638,882 | 530 |
| Ikari Warriors (1986) | 13,003,906 | 1,946 |
| Ikari Warriors II: Victory Road (1986) | 9,324,117 | 4,235 |
| Ikariam (2008) | 353,964 | 349 |
| IKAROS (2017) | 0 | 0 |
| Ikaruga (2001) | 5,286,574 | 2,483 |
| Ike Ike! Nekketsu Hockey-bu: Subete Koronde Dairantou (1992) | 1,170,615 | 130 |
| Ikenfell (2020) | 1,056,054 | 2,019 |
| Ikenie no Yoru (2011) | 27,472,667 | 424 |
| Ikinari Musician (1987) | 10,488 | 14 |
| Ikkarus and the Prince of Sin (2023) | 2,478 | 29 |
| Ikki (1985) | 4,647,524 | 1,223 |
| Ikkitousen: Eloquent Fist (2008) | 374,563 | 130 |
| Ikonei Island: An Earthlock Adventure (2022) | 388,650 | 578 |
| iKungFu (2008) | 19,451 | 9 |
| Ikusa Megami (1999) | 5,916 | 29 |
| Il Sole e la Luna (2019) | 141 | 3 |
| Il Sole e la Luna 2 (2019) | 0 | 0 |
| IL-2 Sturmovik (2001) | 4,141,770 | 1,447 |
| IL-2 Sturmovik: 1946 (2006) | 31,442,930 | 3,237 |
| IL-2 Sturmovik: Battle of Stalingrad (2014) | 11,094,715 | 2,062 |
| IL-2 Sturmovik: Birds of Prey (2009) | 1,801,384 | 490 |
| IL-2 Sturmovik: Cliffs of Dover (2011) | 4,824,466 | 1,152 |
| IL-2 Sturmovik: Forgotten Battles (2003) | 391,650 | 136 |
| IL-2 Sturmovik: Great Battles (2013) | 14,148,715 | 3,898 |
