S
- Sakura Sakura (visual novel)
- Sakura Strasse
- Saya no Uta (Saya's Song)
- School Days
- Summer Days
- Cross Days
- SchoolMate
- SchoolMateSweets! DesktopMate
- Season of the Sakura
- Secret Wives' Club
- Seiken no Fairies (Fairies of the Holy Sword)
- Sexfriend
- Sexy Beach
- Sexy Beach 2
- Sexy Beach 3
- Sexy Beach Zero
- Shizuku (Drip)
- Shuffle!
- Shusaku (Stinko) by ELF
- Snow
- Snow Drop
- Snow Sakura
- The Sono Hanabira ni Kuchizuke wo series
- Sotsugyousei (Dokyusei 2 SP) (Nanpa 2 Special) by ELF
- Sora no Iro, Mizu no Iro (Color of the Sky, Color of the Water)
- Soul Link
- Soul Link Extension
- Steam Hearts
- The Story of Little Monica
- Suika (Water Summer)
- The Super Real Mahjong series
Read more about this topic: List Of Japanese Erotic Video Games