Group
- Demonblade Games2
- Denizens of the Nerd Hole2
- Dennis Pipes6
- Deren Games7
- Design Mechanism8
- Design Thingies1
- Devious Devices9
- Devious Weasel1
- Devious Weasel Games53
- Devir144
- Devir Games400
- Diamond Dust Dreams, Inc.36
- DiamondThrone.com1
- Diana Jones Award1
- Diana Jones Award Foundation1
- Diana Jones Emerging Designer Program52
- Dice Priori2
- Dice Witch8
- Dice and Autism1
- Dice or Death Games8