| True Soft (Inigo Ayo Blazquez, Konstandin Igor Ruiz, Lete) | Developer | |
| TrueCraving | Developer | |
| Truejones | Developer | |
| TruelySaucy | Developer | |
| TrulyDrew | Developer | |
| Trump: Agent of Hate | Developer | |
| Trung | Developer | |
| Trungler | Developer | |
| Trush | DeveloperPublisher | |
| TryHard Studios | Developer | |
| Tryall | Developer | |
| TryconicStudios | Developer | |
| Tryfirst | Publisher | |
| Tryzna | Developer | |
| Trần Văn Trường | Developer | |
| TsFreddie | Developer | |
| TsarN | Developer | |
| TscheiBie | Developer | |
| Tschika | Developer | |
| Tschutscha Games | Developer | |
| Tselmek | Developer | |
| Tsuburaya | Developer | |
| Tsucchi | Developer | |
| Tsuji Jimusho | Developer | |
| Tsukasaroot | Developer | |
| Tsukeoni | Developer | |
| TsukiShinen | Developer | |
| Tsukimagi | Developer | |
| Tsukinoslayer | Developer | |
| Tsukuda Ideal | Publisher | |
| Tsukuda Original | Publisher | |
| Tsukumo Denki | DeveloperPublisher | |
| Tsukuru | Developer | |
| Tsumanga Studios | DeveloperPublisher | |
| Tsumi1717 | Developer | |
| Tsun-Angelique | Developer | |
| Tsunami | Developer | |
| Tsunami Games | DeveloperPublisher | |
| Tsunami Media | DeveloperPublisher | |
| Tsunami Visual Technologies | Publisher | |
| Tsundown | Developer | |
| Tsunscreen | Developer | |
| Tsuxi | Developer | |
| Tuatara Games | Developer | |
| Tubby Cat Games | Developer | |
| Tubby Games | DeveloperPublisher | |
| Tubi | Developer | |
| Tubs | Developer | |
| TubyDev | Developer | |
| Tuckersoft[3] | Publisher | |
| Tudor Luchiean | Developer | |
| Tudypie | Developer | |
| Tufayl | Developer | |
| TuffMallow | Developer | |
| Tui | Developer | |
| Tuji Jimusho | Developer | |
| TukeArt | Developer | |
| Tukoni | Developer | |
| Tulani | Developer | |
| Tulga Games, LLC | Publisher | |
| Tulip Games | Publisher | |
| TulsakFish & Co | Developer | |
| Tumiral | Developer | |
| Tuna | Developer | |
| Tuna Pamir | Developer | |
| Tunadel | Developer | |
| Tunan | Developer | |
| Tundenizer | Developer | |
| TundraFightSchool | Developer | |
| TuneLord | Developer | |
| Tuned-Out Games | DeveloperPublisher | |
| Tung Phan | Developer | |
| Tuning | Publisher | |
| Tuning Electronic | Developer | |
| Tunnel Vision Studio | Developer | |
| Tunnel Vision System | Publisher | |
| TuomoL | Developer | |
| TupiNUMBooR | Developer | |
| Tuque Games | Developer | |
| Turbine Entertainment Software | DeveloperPublisher | |
| Turbine, Inc. | DeveloperPublisher | |
| Turbo Developement Team | Developer | |
| Turbo Hermit | Developer | |
| Turbo Makes Games | Developer | |
| Turbo Pelvis 3000 | DeveloperPublisher | |
| Turbo Soft | DeveloperPublisher | |
| TurboCorp | Developer | |
| TurboCrackers | Developer | |
| TurboG | Developer | |
| TurboGoose | Developer | |
| TurboHenry | Developer | |
| TurboNuke | Developer | |
| Turbonerds | Developer | |
| Turbowizard | Developer | |
| Turcan Research Systems | Developer | |
| TurdlePoff | Developer | |
| Turhaarpa | Developer | |
| Turkey The Squirrel | Developer | |
| Turn 10 Studios | Developer | |
| Turnaround Games | Developer | |