| TheTurboTurnip | Developer | |
| TheTwoPrinces | Developer | |
| TheUnproPro | Developer | |
| TheUnreliableCleric | Developer | |
| TheUpturnedSheep | Developer | |
| TheUtterArtist | Developer | |
| TheViralDragon | Developer | |
| TheVoid | Developer | |
| TheWaether | Developer | |
| TheWell | Developer | |
| TheWholeRatio | Developer | |
| TheWildJoshwaa | Developer | |
| TheWingedBlue | Developer | |
| TheWorldBuilder | Developer | |
| TheWzzard | Developer | |
| TheXandan | Developer | |
| TheXaver | Developer | |
| TheYannPicard | Developer | |
| TheYoungDeveloper | Developer | |
| TheZBillDyl | Developer | |
| TheZynec | Developer | |
| The_Butter | Developer | |
| The_Developer | Developer | |
| The_Guardians | Developer | |
| The_Hat_Guy | Developer | |
| The_Kiddy | Developer | |
| The_King_Of-NeRdS | Developer | |
| The_Little_World | Developer | |
| The_Whopper | Developer | |
| The_bot_Who_will_kill_u | Developer | |
| The_rikki | Developer | |
| Thea.Trevignon | Developer | |
| TheaDesigns | Developer | |
| Theatrix Interactive | Developer | |
| Thebarron1985 | Developer | |
| Theboredguy | Developer | |
| Theck | Developer | |
| Theepicosity | Developer | |
| ThefitzyG | Developer | |
| Theg | Developer | |
| Theheratic | Developer | |
| Theihe | Developer | |
| Theipe | Developer | |
| Thejaspel | Developer | |
| Thekittymix | Developer | |
| Thekla | DeveloperPublisher | |
| Thekla, Inc. | Developer | |
| ThelDapperApple | Developer | |
| Them Games | Developer | |
| Theo Gautier | Developer | |
| Theo Triantafyllidis | Developer | |
| Theo V. | Developer | |
| TheoClarke | Developer | |
| TheoTheTorch | Developer | |
| TheoValley | Developer | |
| Theo_Brochet | Developer | |
| Theodore Altair | Developer | |
| Theomaniacal | Developer | |
| Theonlyrio | Developer | |
| TheophileGarnier | Developer | |
| Theotime Vaillant | Developer | |
| Theras | Developer | |
| Thereadypunk | Developer | |
| TherizinoStudio | Developer | |
| Thermite Games | Developer | |
| Therratos | Developer | |
| Thestupidobros | Developer | |
| Thesubwild | Developer | |
| ThetaGames | Developer | |
| ThetaNord | Developer | |
| ThetauGames | Developer | |
| Theternal16 | Developer | |
| Theurgy RPG | Developer | |
| Thevgm | Developer | |
| Thevyber gamer | Developer | |
| Theyer GFX | Developer | |
| Thiago L. | Developer | |
| Thiago Melo | Developer | |
| Thiago Yamagishi | Developer | |
| Thiago Yasue | Developer | |
| ThiagoOliveira | Developer | |
| Thibaud Ligneul | Developer | |
| ThibaudB | Developer | |
| Thibault DUPRÉ | Developer | |
| Thibault Vincent | Developer | |
| Thibaut Lemmens | Developer | |
| Thibaut Mereu | Developer | |
| Thibazu | Developer | |
| Thing Trunk | DeveloperPublisher | |
| ThingOnItsOwn | Developer | |
| Things For Humans | Developer | |
| Things3D VR Games Publisher | Developer | |
| Thinice Games | Developer | |
| Think & Feel | Developer | |
| Think & Feel]] | Developer | |
| Think Garage | Developer | |
| Think Soft | DeveloperPublisher | |
| Think!Ware Development | Developer | |
| ThinkFast Studio | Developer | |
| Thinking Cap | DeveloperPublisher | |
| Thinking Cap Software | Publisher | |
| Thinking Frog Studios | Developer | |
| Thinking Machine Associates | DeveloperPublisher | |
| Thinking Rabbit | DeveloperPublisher | |
| Thinking Tools | Developer | |
| ThinkingMicrowave | Developer | |
| ThinkingStars | DeveloperPublisher | |
| Third Law Entertainment | Developer | |
| Third Law Interactive | Developer | |
| Third Party Software | Publisher | |
| Third Rock Games | Developer | |
| Third Wave Games | DeveloperPublisher | |
| Third Wire Productions | DeveloperPublisher | |
| Third-I Productions | Publisher | |
| ThirstyPenguin | Developer | |
| Thirty Three Games | Developer | |
| ThirtyThree | Developer | |
| ThirtysixLab | Developer | |
| This Side of Me | Developer | |
| ThisGooch | Developer | |
| ThisPersonDoesNotExist_Games | Developer | |
| Thob | Developer | |
| Thola studio | Developer | |
| ThomW | Developer | |
| Thomas | Developer | |
| Thomas B. Hardy | Developer | |
| Thomas Ball (computer scientist), | Developer | |
| Thomas Biskup | DeveloperPublisher | |
| Thomas Bowker | Developer | |
| Thomas Chassin | Developer | |
| Thomas Feichtmeir Cyangmou | Developer | |
| Thomas Gervraud | Developer | |
| Thomas Gittelbauer | Developer | |
| Thomas Guitton | Developer | |
| Thomas Haaks (Right Angle Games) | Developer | |
| Thomas Happ Games | DeveloperPublisher | |
| Thomas Huang | Developer | |
| Thomas L. | Developer | |
| Thomas Lean | Developer | |
| Thomas Lehnert | Developer | |
| Thomas Lessa | Developer | |
| Thomas Ling | Developer | |
| Thomas Manuel | Developer | |
| Thomas Martin | Developer | |
| Thomas Mathys | Developer | |
| Thomas Mazzaferro | Developer | |
| Thomas Moon Kang | Developer | |
| Thomas Nichols | Developer | |
| Thomas Noone & Patrick Noone | Developer | |
| Thomas Olsson | Developer | |
| Thomas Pytel | Developer | |
| Thomas Rodriguez | Developer | |
| Thomas Sjerps | Developer | |
| Thomas Sullivan | Developer | |
| Thomas Viktil | Developer | |
| Thomas and Steffen Dingel | Developer | |
| Thomas the Franque | Developer | |
| Thomas09 Games | Developer | |
| ThomasBradstreet | Developer | |
| ThomasMONNERIE | Developer | |
| ThomasPettus | Developer | |
| ThomasVanbo | Developer | |
| Thomasda | Developer | |
| Thomassu | Developer | |
| Thomasteste | Developer | |
| ThommazK | Developer | |
| Thompsonsoft | DeveloperPublisher | |
| Thomy75 | Developer | |
| Thong Nguyen | Developer | |
| Thoof | Developer | |
| Thor Computer Software | Publisher | |
| Thor Merlin Lervik | Developer | |
| ThorGameDev | Developer | |
| Thormbreak | Developer | |
| Thorn | Developer | |
| Thorn Dragon | Developer | |
| Thornbury Software | DeveloperPublisher | |
| Thornido | Developer | |
| Those Awesome Guys | Publisher | |
| Those Coded Lunatics | Developer | |
| Those Darn Kids | Developer | |
| Thought Cabinet | Developer | |
| Thought Train | Developer | |
| ThoughtBread | Developer | |
| Thousand Games | Developer | |
| Thousand Stars Studio | Developer | |
| ThousandYrGames | Developer | |
| Thrasher08 | Developer | |
| Thraxx Media | Developer | |
| Threaks | DeveloperPublisher | |
| Three Donkeys LLC | DeveloperPublisher | |
| Three Fields Entertainment | DeveloperPublisher | |
| Three Gates | DeveloperPublisher | |
| Three Kiddos STUDIOS | Developer | |
| Three Moon Games | Developer | |
| Three One Zero | Developer | |
| Three Rings | Developer | |
| Three Rings Design | DeveloperPublisher | |
| Three Rivers Software | Developer | |
| Three Spirits | Developer | |