| Itsuka, Todoku, Ano Sora ni. ~You no Michi to Hi no Tasogare to~ Limited Edition | r235 | 2026-05-06 |
| Itsumama 2 | r87217 | 2026-05-08 |
| Itsumama 2 | r111945 | 2026-04-21 |
| Itsumama 3 | r111946 | 2026-04-21 |
| Itsutsugo -Lovely Quintuplets- Download Edition | r5635 | 2026-05-15 |
| Itsutsugo -Lovely Quintuplets- Package Edition | r5634 | 2026-05-15 |
| Itsuwari no Alkanet - Kazuki's route | r48040 | 2026-05-11 |
| Itsuwari no Alkanet - Sakae's route | r48039 | 2026-05-13 |
| Itsuwari ~Ingyaku no Bijin Shimai~ Download Edition | r8048 | 2026-05-07 |
| Iudex Inquisitor | r125702 | 2026-05-14 |
| Iveri: The 1.000 Story | r70194 | 2026-05-13 |
| Iveri: The 1.000 Story | r83903 | 2026-05-13 |
| Ivory | r95225 | 2026-05-14 |
| Ivory Breeze - Build 2 | r124080 | 2026-04-21 |
| Ivy | r36534 | 2026-04-21 |
| Ivy and Blue | r92136 | 2026-04-21 |
| Ivy. | r128867 | 2026-04-21 |
| Iwaihime | r104212 | 2026-05-14 |
| Iwaihime | r113547 | 2026-05-07 |
| Iwaihime - Download Edition | r41108 | 2026-05-14 |
| Iwaihime -Matsuri- Web Trial Edition | r89679 | 2026-05-07 |
| Iwakura Aria | r130091 | 2026-05-06 |
| Iwakura Aria - Download Edition | r121535 | 2026-05-13 |
| Iwakura Aria - Limited Edition | r119966 | 2026-05-11 |
| IxSHE | r120233 | 2026-05-14 |
| IxSHE Tell | r145126 | 2026-05-14 |
| IxSHE Tell | r85642 | 2026-05-14 |
| IxSHE Tell | r119871 | 2026-05-13 |
| IxSHE Tell | r87811 | 2026-05-13 |
| IxSHE Tell | r70825 | 2026-05-10 |
| IxSHE Tell | r53878 | 2026-05-10 |
| IxSHE Tell | r69285 | 2026-05-06 |
| IxSHE Tell - 18+ Steam Patch | r74026 | 2026-05-10 |
| IxSHE Tell - 18+ Steam Patch | r94704 | 2026-04-21 |
| IxSHE Tell - Download Edition | r58216 | 2026-05-15 |
| IxSHE Tell - Download Edition | r152379 | 2026-05-10 |
| IxSHE Tell - Limited Edition | r73201 | 2026-05-12 |
| IxSHE Tell - Limited Edition | r73200 | 2026-05-12 |
| IxSHE Tell - Regular Edition | r66688 | 2026-05-12 |
| IxSHE Tell - Regular Edition | r70824 | 2026-05-10 |
| IxSHE Tell - Steam Edition | r85643 | 2026-05-10 |
| IxSHE Tell - Steam Edition | r73672 | 2026-04-21 |
| IxSHE Tell - Trial Edition | r139100 | 2026-05-14 |
| IxSHE Tell コンプリートセット | r61159 | 2026-04-21 |
| IxSHE Tell ダウンロード版 | r139097 | 2026-04-21 |
| IxSHE Tell 体験版 | r55308 | 2026-04-21 |
| IxSHE Tell 体験版 | r139099 | 2026-04-21 |
| Iyasare Gohoushi ~Yume no Yakata de Kenja Time!~ Download Edition | r23067 | 2026-05-11 |
| Iyashi no Megami no Marmot | r121042 | 2026-04-21 |
| Iyashi no Megami no Marmot - Download Edition | r55888 | 2026-05-16 |