| CROSSOVER | r136648 | 2026-04-21 |
| CROSSFIRE 2 アンジェと杏樹 DVD-PG | r151054 | 2026-04-21 |
| CROSSFIRE 1 - Rena and Kaede - DVDPG | r150183 | 2026-05-14 |
| CROSSFIRE | r150182 | 2026-04-21 |
| CROSS script | r6957 | 2026-05-15 |
| CROSS WORLD ~Mishiranu Sora no Etatia~ Speical Repackage Edition | r126504 | 2026-05-10 |
| CROSS WORLD ~Mishiranu Sora no Etatia~ Regular Edition | r5581 | 2026-05-05 |
| CROSS TO BEAR | r57970 | 2026-05-07 |
| CROSS FIRE ダウンロード版 | r31620 | 2026-04-21 |
| CROSS FIRE - First Press Edition | r1053 | 2026-05-16 |
| CROSS AFFAIR - Nanohana ga Saku Basho de- | r150904 | 2026-05-09 |
| CROOKED LOVE | r135028 | 2026-04-21 |
| CRIMSON SAND v0.1.0b | r148126 | 2026-05-12 |
| CRIMSON RING - Beta Edition | r99327 | 2026-05-14 |
| CRIMSON RING | r85233 | 2026-05-16 |
| CRESCENT MOON がぁる | r24177 | 2026-04-21 |
| CRESCENT MOON がぁる | r64949 | 2026-04-21 |
| CRESCENT MOON がぁる | r64952 | 2026-04-21 |
| CRESCENT MOON がぁる | r64951 | 2026-04-21 |
| CRESCENT MOON がぁる | r64950 | 2026-04-21 |
| CRESCENT MOON がぁる | r23913 | 2026-04-21 |
| CRESCENT MOON Girl | r23914 | 2026-05-16 |
| CRAZY MIXed UP！-同好会危機一髪！- | r34514 | 2026-04-21 |
| CRAZY MIXed UP! -Doukoukai Kiki Ippatsu!- | r34515 | 2026-05-17 |
| CRAZY CHA!N -エルピスの鎖- 通常版 | r132400 | 2026-04-21 |
| CRAZY CHA!N -Elpis no Kusari- Special Edition | r153506 | 2026-05-18 |
| CRAZY CHA!N -Elpis no Kusari- DL Edition | r153507 | 2026-05-10 |
| CRAVE×10 ダウンロード版 | r34860 | 2026-04-21 |
| CRAVE×10 | r7331 | 2026-05-10 |
| CRACK≡TRICK！ 豪華版 | r142120 | 2026-04-21 |
| CRACK≡TRICK！ DL版 | r142121 | 2026-04-21 |
| CRACK≡TRICK! - Trial Edition | r143941 | 2026-05-13 |
| CRACK≡TRICK! - Trial Edition | r143110 | 2026-05-13 |
| CRACK≡TRICK! - Package Regular Edition | r138451 | 2026-05-15 |
| CRACK≡TRICK! | r146976 | 2026-04-21 |
| CRACK LACK GOOD LUCK | r126326 | 2026-04-21 |
| CR33P - Limited Release | r137909 | 2026-04-21 |
| CR33P | r138219 | 2026-04-21 |
| COWCAW! Watashi no Hanawa no Tatsuna o Hiite! | r94863 | 2026-05-05 |
| COWBOY TOWN | r82212 | 2026-05-07 |
| COTE: Red Sonata v0.21.3 | r125782 | 2026-04-21 |
| COTE: Red Sonata | r143281 | 2026-05-06 |
| COSPLAY LOVE! Enchanted princess - 18+ Steam Patch | r90557 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess - 18+ Edition | r90556 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r120714 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r130872 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r130874 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r88384 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r88383 | 2026-04-21 |
| COSPLAY LOVE! Enchanted princess | r91626 | 2026-04-21 |