| Three Times Infinite | Developer | |
| Three-Sixth Pacific | Publisher | |
| Three-Sixty Pacific | DeveloperPublisher | |
| Three-legged crow | Developer | |
| ThreeAnglePie | Developer | |
| ThreePixels | Developer | |
| Three_dots | Developer | |
| Threeli | Developer | |
| Threewave Software | Developer | |
| Threshold Seven | Developer | |
| Threstle | Developer | |
| Threye Interactive | DeveloperPublisher | |
| ThriftUterus | Developer | |
| ThrillDaWill | Developer | |
| Thrinmor | Developer | |
| Through Games | DeveloperPublisher | |
| ThroughLine Games | Developer | |
| ThroughTunnel | Developer | |
| Throw the Warped Code Out | DeveloperPublisher | |
| Throwback Entertainment | Publisher | |
| Throwback Games | Developer | |
| ThrowbackDev | Developer | |
| Thruster Games | Developer | |
| ThubyDev | Developer | |
| Thuleanx | Developer | |
| Thund | Developer | |
| Thunder Cloud Studio | Publisher | |
| Thunder Egg Concepts | Developer | |
| Thunder Lotus | Developer | |
| Thunder Lotus Games | DeveloperPublisher | |
| Thunder Mountain | DeveloperPublisher | |
| Thunder Mountain (company) | Publisher | |
| Thunder Perfect Witchcraft | Developer | |
| ThunderLime | Developer | |
| Thunder_Loud | Developer | |
| Thunder_Wood | Developer | |
| Thundercloud | Developer | |
| Thunderduck | Developer | |
| Thunderent | Developer | |
| Thunderfall Publishing | Publisher | |
| Thunderful | Publisher | |
| Thunderful Games | Publisher | |
| Thunderful Publishing | Publisher | |
| Thunderous Echo | Developer | |
| Thunderous Wizard Studios | Developer | |
| Thundersparks | Developer | |
| Thunderstruck Games | Developer | |
| Thur | Developer | |
| Thuranius | Developer | |
| ThyDuck | Developer | |
| Thylacine Studios | Developer | |
| ThylacineStudios | Developer | |
| Théo Gros | Developer | |
| Théo Leicht | Developer | |
| TiGames | Developer | |
| TiMerGames | Developer | |
| TiMi Studios | Developer | |
| Tia Liet | Hydromer | Developer | |
| Tiago Marino | Developer | |
| Tiago Marques | Developer | |
| Tiago Sambatti | Developer | |
| TiagoCWB | Developer | |
| Tiananmen Planet | Developer | |
| Tianhao Wang | Developer | |
| Tiani Pixel | Developer | |
| Tians | Developer | |
| Tianyu Studio Software | DeveloperPublisher | |
| Tiare | DeveloperPublisher | |
| Tibault | Developer | |
| Tibba Games | Developer | |
| TibbleTop | Developer | |
| TibiSoft | Developer | |
| Tiburon | Developer | |
| Tiburon Entertainment | Developer | |
| Tiburon Interactive Publishing | Publisher | |
| Tic Tac Toad | Developer | |
| Tic Toc Games | DeveloperPublisher | |
| TicToc Games | DeveloperPublisher | |
| TiccyRobby | Developer | |
| TickTock Games | Developer | |
| Ticolol | Developer | |
| Ticsoft | DeveloperPublisher | |
| Ticsoft Software | Developer | |
| TidalBlossoms | Developer | |
| Tide Productions | Developer | |
| Tieffeline | Developer | |
| Tienesf | Developer | |
| Tiera | Developer | |
| Tierheit | Developer | |
| Tiertex | Developer | |
| Tiertex (Chris Shay) | Developer | |
| Tiertex (David Beresford, Wayne Blake, Dave Stead, Mr. Pixels) | Developer | |
| Tiertex (John Prince, Duncan Campbell, Martin Wakeley) | Developer | |
| Tiertex (Mark Haigh-Hutchinson, Blue Turtle, Mark Tait) | Developer | |
| Tiertex (Mark Haigh-Hutchinson, Blue Turtle, Mike Davies) | Developer | |
| Tiertex Design Studios | Developer | |
| Tiertex Ltd. | Developer | |
| Tiffany Lam | Developer | |
| Tiger & Squid | Developer | |
| Tiger Collins | Developer | |