| Isogashii Hito no Tame no Koumakyou | r6265 | 2026-05-17 |
| Isogashii Hito no Tame no Youyoumu Extra | r26676 | 2026-06-04 |
| Isola del;tesoro versione mezzo | r114194 | 2026-04-21 |
| Isola's Spooky Soiree - An Egg Factory Game v0.2 | r101861 | 2026-04-21 |
| Isolated Pleasure [Ch. 1-4] | r98704 | 2026-04-21 |
| Isourou - Oi, Nanda Kore wa ver | r96047 | 2026-05-22 |
| Isourou. | r96031 | 2026-06-07 |
| Isourou. Remake | r96038 | 2026-06-06 |
| Isporchennaja ljubov' v0.7 | r112724 | 2026-05-31 |
| Issho ni Arukou. - Trial Edition | r6875 | 2026-05-22 |
| Issho ni Asobou | r96573 | 2026-05-31 |
| Issho ni Chapuchapu Time! ~Ofuro de Ichaicha Seikatsu~ | r124180 | 2026-06-07 |
| Issho ni Gohan. Portable - Regular Edition | r20507 | 2026-05-22 |
| Issho ni Ikimashou Ikimashou Ikimashou | r87512 | 2026-06-02 |
| Issho ni Ikimashou Ikimashou Ikimashou | r135973 | 2026-06-01 |
| Issho ni Ikimashou Ikimashou Ikimashou | r128963 | 2026-05-22 |
| Issho ni Ikimashou Ikimashou Ikimashou | r128517 | 2026-05-22 |
| Issho ni Ikimashou Ikimashou Ikimashou | r110513 | 2026-05-22 |
| Issho ni Ikimashou Ikimashou Ikimashou | r128897 | 2026-05-22 |
| Issho ni Ikimashou Ikimashou Ikimashou - Prologue Edition | r49681 | 2026-05-29 |
| Issho ni Ikimashou Ikimashou Ikimashou - Trial Edition | r95456 | 2026-05-19 |
| Issho ni Ikou yo! -Momoiro Dougakan- | r94256 | 2026-06-07 |
| Issho ni Iyou ne. | r108850 | 2026-05-22 |
| Issho ni Massage♪ ~Imouto ni Massage~ | r151901 | 2026-06-04 |
| Issho ni Massage♪ ~Imouto ni Massage~ | r39169 | 2026-05-22 |
| Issho ni Massage♪ ~Osananajimi ni Massage~ | r151902 | 2026-05-22 |
| Issho ni Ohiru o Tabemashou! Wanko na Kouhai Hen♪ | r63977 | 2026-05-17 |
| Issho no Noroi | r91438 | 2026-05-19 |
| Isshou Tsuika Plugin Tachie Chicubi Bansoko Patch | r55479 | 2026-06-04 |
| Isshou Tsuika Plugin Tachie Hadaka Patch | r55477 | 2026-05-30 |
| Isshou ni Ichido Dake Saku Hana no Namae de - Download Edition | r22817 | 2026-05-20 |
| Isshou ni Ichido Dake Saku Hana no Namae de - Press Edition | r22818 | 2026-05-17 |
| Isshou ni Ichido no, - Web Edition | r77458 | 2026-05-19 |
| Isshuku Ippatsu Yarihamezon -Ojisan Semen Ze~nbu Choudai- | r62209 | 2026-05-31 |
| Isshuukan dake no Kareshi | r105261 | 2026-05-22 |
| Issleduen Rozovuju Shkatulku v0.10 - Ch.1-7 | r147519 | 2026-05-11 |
| Issunsaki wa Yuri~! | r94505 | 2026-05-22 |
| Istanbul (not Constantinople) | r91276 | 2026-05-21 |
| Ister-Tamago | r122375 | 2026-05-20 |
| Istinnaja ljubov': Lilija okrashivaetsja v alyj | r148008 | 2026-05-22 |
| Istorii Taffi v0.89.8c + v1.07.3c + Season 1 Redux +S2 Redux Demo | r101334 | 2026-06-01 |
| Istorii iz Dal'nego Daleka [Issue 6] | r119578 | 2026-06-06 |
| Istorija Aljony | r91137 | 2026-05-20 |
| Istorija Hejli | r92678 | 2026-05-09 |
| Istorija Lizy | r118786 | 2026-05-22 |
| Istorija Ljubvi | r119185 | 2026-05-31 |
| Istorija Ljubvi | r95070 | 2026-05-30 |
| Istorija Sem'i Arkana | r152846 | 2026-05-19 |
| Istorija kluba heiterov | r114677 | 2026-06-06 |
| Istorija l'vichek | r37007 | 2026-05-22 |