| Signal Heart Plus | r6154 | 2026-05-09 |
| Signal Strength | r137099 | 2026-05-18 |
| Signalis Fan Dating Sim | r104571 | 2026-04-21 |
| Signed Mary | r127868 | 2026-04-21 |
| Signed Mary | r141962 | 2026-04-21 |
| Signed X | r52794 | 2026-05-15 |
| Signed X | r29766 | 2026-04-21 |
| Signed X | r26145 | 2026-04-21 |
| Signed X Lite | r29765 | 2026-04-21 |
| Signed and Sealed With a Kiss | r63466 | 2026-04-21 |
| Signed and Sealed With a Kiss - 18+ Patch | r65565 | 2026-05-18 |
| Signs of Life - Demo | r105492 | 2026-04-21 |
| Signs of Pluto Destruction - Demo | r140755 | 2026-04-21 |
| Siguo Zhi ~Jiu Chi Rou Mian Zhan Ji~ Censored Edition | r73586 | 2026-05-15 |
| Sigye Jangchiui Ley Line 2 | r64545 | 2026-05-11 |
| Sihai's Legacy v10.1.1 | r89439 | 2026-05-17 |
| Siil Sonicu Mõrvamüsteerium | r143608 | 2026-04-21 |
| Sijajuschie teni. Chast' pervaja knigi seroj magii | r77877 | 2026-05-17 |
| Sikyeojuseyo, Sanchaek! | r139263 | 2026-05-08 |
| Sikyeojuseyo, Sanchaek! (Secret Plus) | r131689 | 2026-05-10 |
| Sikyeojuseyo, Sanchaek! [DEMO] | r144679 | 2026-05-16 |
| Sila Istiny v0.0.9.0 Ch.1 P1-3 | r144324 | 2026-05-11 |
| Sila Vakuuma Ch. 1-12 + What If + Vol. 8 NTR | r83202 | 2026-05-17 |
| Sila v.2.0 + Rise of the Legend | r83789 | 2026-05-17 |
| Silat Warrior | r99476 | 2026-04-21 |
| Silence | r28788 | 2026-04-21 |
| Silence of Switchblade - Demo | r123001 | 2026-05-16 |
| Silence of Switchblade - Demo | r123002 | 2026-05-16 |
| Silence of Switchblade - Trial Edition - Download Edition | r99562 | 2026-05-12 |
| Silence of Switchblade アーリーアクセス版 | r95050 | 2026-04-21 |
| Silence of Switchblade 体験版 CD版 | r102074 | 2026-04-21 |
| Silence of the Turnabout | r20097 | 2026-05-07 |
| Silence to the Eyes - Demo | r117502 | 2026-04-21 |
| Silence ~Namida o Fuite~ | r68745 | 2026-05-10 |
| Silence ~Namida o Fuite~ All ages version | r114615 | 2026-05-10 |
| Silence～聖なる夜の鐘の中で・・・～ 初回版 | r11407 | 2026-04-21 |
| Silent Bonds - Demo | r126790 | 2026-05-14 |
| Silent Duel - First Press Edition | r13594 | 2026-05-18 |
| Silent Duel - Regular Edition | r13595 | 2026-05-18 |
| Silent Echoes | r127015 | 2026-04-21 |
| Silent Half | r9216 | 2026-04-21 |
| Silent Hill: Genesis (beta) | r26965 | 2026-05-16 |
| Silent Hill: Genesis (beta) | r30659 | 2026-05-09 |
| Silent Hill: Play Novel | r52075 | 2026-05-16 |
| Silent Hill: Play Novel | r28051 | 2026-04-21 |
| Silent Hill: Play Novel | r78393 | 2026-04-21 |
| Silent Hill: Play Novel | r78392 | 2026-04-21 |
| Silent Hill: Play Novel - Translation of Cybil's Scenario | r13689 | 2026-05-18 |
| Silent Hill: Play Novel - Translation of Harry's Scenario | r13688 | 2026-05-18 |
| Silent Hill: Promise - The Final Chapter | r113016 | 2026-05-18 |