The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Souls (Series) (3 members)
- SouthPeak Games (Publisher) (3 members)
- South Park (Series) (1 member)
- Southend Interactive (Developer) (3 members)
- Space Monkey International (Developer) (1 member)
- Spark Unlimited (Developer) (4 members)
- Sparkworkz (Developer) (1 member)
- Sparpweed (Publisher) (1 member)
- Spearhead Games (Developer) (1 member)
- Spelunker (Series) (2 members)
- Spicy Horse (Developer) (1 member)
- Spider-Man (Series) (6 members)
- Spiders (Developer) (4 members)
- Spike (Developer) (4 members)
- Spike Chunsoft (Developer) (3 members)
- Spike Chunsoft (Publisher) (6 members)
- SpinVector (Developer) (1 member)
- SpinVector (Publisher) (1 member)
- Splash Damage (Developer) (1 member)
- Sports (Genre) (266 members)