| Warren Robinett & Dr. Leslie Grimm | Developer | |
| Warren Schwader | Developer | |
| Warsow team | Developer | |
| Warthog | DeveloperPublisher | |
| Warthog Games | Developer | |
| Wartori | Developer | |
| Warux | Developer | |
| Warwolf | Developer | |
| Warxwell | Developer | |
| Warzonefury | Developer | |
| WasDeveloperStudioMX | Developer | |
| Washing-Up Software Projects | Developer | |
| Wasplay | Developer | |
| Wasteam | Developer | |
| WastedHorchata | Developer | |
| Wastelands | Publisher | |
| Wastelands Interactive | Developer | |
| WatDowTal | Developer | |
| Watanabe Seisakujo | DeveloperPublisher | |
| Watanoge | Developer | |
| Watch Dogs 2 Dating Sim | Developer | |
| Water Flare | Developer | |
| WaterHorseGames | Developer | |
| WaterMelon | DeveloperPublisher | |
| WaterMelon Games | DeveloperPublisher | |
| WaterPlug | Developer | |
| Watercress | Developer | |
| Waterdev | Developer | |
| Waterman Design | Developer | |
| Watermark RPG | Developer | |
| Wathitdew Record™ | Developer | |
| Watita Games | Developer | |
| Watt Technologies | Developer | |
| Wave | DeveloperPublisher | |
| Wave Corp | Developer | |
| Wave Corp. | Publisher | |
| Wave Quest | Developer | |
| Wave Train | DeveloperPublisher | |
| WaveCollapse | Developer | |
| WaveParadigm | Developer | |
| WaveQuest | Developer | |
| Wavedge | Developer | |
| Wavelength Studios | Developer | |
| Waverly SM | Developer | |
| Waveston | Developer | |
| Waving Walrus Games | Developer | |
| Wax Wings Studio | Developer | |
| Waxwing Games | Developer | |
| Way Down Deep | Publisher | |
| Way Limit Corporation | Developer | |