The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Shader mode: Shader Interpreter only (Config) (1 member)
- Shader quality: High (Config) (4 members)
- Shader quality: Low (Config) (1 member)
- Shank (Series) (2 members)
- Shin Hayarigami (Series) (2 members)
- Shindenken (Developer) (1 member)
- Shining (Series) (1 member)
- Shiny Entertainment (Developer) (1 member)
- Shoot 'em up (Genre) (41 members)
- Shooter (Genre) (41 members)
- Side-scroller (Genre) (3 members)
- SideQuest Studios (Developer) (4 members)
- Sideline Amusements (Developer) (1 member)
- Sidhe (Developer) (5 members)
- Sidhe (Publisher) (1 member)
- Sidhe Interactive (Developer) (1 member)
- Sierra Entertainment (Publisher) (1 member)
- Sigma Team (Developer) (1 member)
- Silence all logs: On (Config) (5 members)
- Silent Hill (Series) (3 members)