The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- Digital Reality (Developer) (3 members)
- Digital Reality (Publisher) (5 members)
- Dimensional Ink Games (Developer) (1 member)
- Dimps (Developer) (10 members)
- Dirt (Series) (4 members)
- Disable ZCull occlusion queries: On (Config) (6 members)
- Disable vertex cache: On (Config) (13 members)
- Disgaea (Series) (3 members)
- Disney Infinity (Series) (3 members)
- Disney Interactive Studios (Publisher) (26 members)
- Disney Sing It (Series) (5 members)
- Disruptive Games (Developer) (1 member)
- Doctor Entertainment (Developer) (1 member)
- Doctor Entertainment (Publisher) (1 member)
- Doko Demo Issho (Series) (1 member)
- Dontnod Entertainment (Developer) (1 member)
- Doodle (Series) (3 members)
- Doom (Series) (2 members)
- Dorasu (Developer) (1 member)
- Dorasu (Publisher) (1 member)