| SLEEPLESS ~A Midsummer Night's Dream~ Download Edition | r82723 | 2026-05-13 |
| SLEEPLESS ~A Midsummer Night's Dream~ | r153036 | 2026-04-21 |
| SLEEPLESS ~A Midsummer Night's Dream~ | r118346 | 2026-04-21 |
| SLEEPLESS ~A Midsummer Night's Dream~ | r78924 | 2026-04-21 |
| SLEEPLESS Nocturne ダウンロード版 | r98256 | 2026-04-21 |
| SLEEPLESS Nocturne & SLEEPLESS-A Midsummer Night's Dream- | r89987 | 2026-05-26 |
| SLEEPLESS Nocturne - Decensor Patch | r148063 | 2026-05-08 |
| SLEEPLESS Nocturne | r89986 | 2026-05-17 |
| SLEEPLESS Nocturne | r118779 | 2026-04-21 |
| SLEEPLESS Nocturne | r126544 | 2026-04-21 |
| SLEEPLESS -A Midsummer Night’s Dream- | r126543 | 2026-05-28 |
| SLAVE HUNTER -Tenraku no Bijin Sousakan- Download Edition | r153101 | 2026-05-23 |
| SKY LAB 夏コミ版 | r106286 | 2026-04-21 |
| SKY LAB - Complete Edition | r39306 | 2026-05-23 |
| SKOTOS | r143152 | 2026-04-21 |
| SKIN(S)CARE | r142672 | 2026-04-21 |
| SKIN GAMES | r143199 | 2026-05-17 |
| SKAPON探検隊 5.25インチ版 | r132420 | 2026-04-21 |
| SKAPON探検隊 | r18959 | 2026-04-21 |
| SKAPON: Tankentai - FM-77 Edition | r151097 | 2026-05-11 |
| SKAPON: Tankentai - 3.5-inch Edition | r151096 | 2026-05-10 |
| SKAPON: Tankentai | r18960 | 2026-05-17 |
| SITLUS | r101973 | 2026-05-22 |
| SISTERS ～夏の最後の日～ Ultra Edition - Download版 | r37327 | 2026-04-21 |
| SISTERS ~Natsu no Saigo no Hi~ Ultra Edition - Repackage Edition | r97363 | 2026-05-17 |
| SISTERS ~Natsu no Saigo no Hi~ Ultra Edition - Repackage Deluxe Edition | r97364 | 2026-05-17 |
| SISTERS ~Natsu no Saigo no Hi~ Ultra Edition - Demosaic Patch | r124211 | 2026-05-17 |
| SISTERS ~Natsu no Saigo no Hi~ Ultra Edition | r23445 | 2026-05-17 |
| SISTERPHILE | r133686 | 2026-05-07 |
| SISTERITUAL | r85119 | 2026-05-27 |
| SISTERITUAL | r120797 | 2026-04-21 |
| SISTERITUAL | r95868 | 2026-04-21 |
| SIS and BRO: The Cyborg Siblings - Early Access | r139936 | 2026-05-29 |
| SIS and BRO: The Cyborg Siblings - Demo | r139935 | 2026-05-30 |
| SINxHOLIC - Demo | r108576 | 2026-04-21 |
| SINce Memories: Xingqiong zhi Xia - Regular Edition | r94468 | 2026-05-24 |
| SINce Memories: Xingqiong zhi Xia - Limited Edition | r94466 | 2026-06-06 |
| SINce Memories: Xingqiong zhi Xia - Limited Edition | r94467 | 2026-05-25 |
| SINce Memories: Hoshi no Sora no Shita de - Package Edition | r121559 | 2026-05-21 |
| SINce Memories: Hoshi no Sora no Shita de - Download Edition | r79646 | 2026-06-05 |
| SINce Memories: Hoshi no Sora no Shita de - Download Edition | r120821 | 2026-06-02 |
| SINce Memories: Hoshi no Sora no Shita de - Download Edition | r120820 | 2026-06-02 |
| SINce Memories: Hoshi no Sora no Shita de - Download Edition | r94423 | 2026-06-01 |
| SINce Memories: Hoshi no Sora no Shita de | r85337 | 2026-05-22 |
| SING A WORLD NOIZE | r100092 | 2026-06-09 |
| SINCLIENT 体験版 | r22294 | 2026-04-21 |
| SINCLIENT - Download Edition | r74516 | 2026-06-06 |
| SINCLIENT | r32118 | 2026-06-09 |
| SINCLIENT | r21481 | 2026-05-28 |
| SINCLIENT | r31405 | 2026-04-21 |