| Turned Into A Newt | Developer | |
| Turner Broadcasting System | Publisher | |
| Turner Interactive | Publisher | |
| Turnfollow | Developer | |
| TurnipXenon | Developer | |
| Turnip_liker | Developer | |
| Turnkey Software | Publisher | |
| Turnovus | Developer | |
| Turquoise_VideoGame | Developer | |
| Turtl33 | Developer | |
| Turtle Cream | DeveloperPublisher | |
| Turtle Hearts | Developer | |
| Turtle Rock Studios | Developer | |
| Turtle Sandbox | DeveloperPublisher | |
| TurtleBlaze | Developer | |
| TurtleFlyte | Developer | |
| TurtleMaddio | Developer | |
| TurtleTech | Developer | |
| TurtleinaBox | Developer | |
| TurtleyGay | Developer | |
| Tuskat | Developer | |
| TuttiCrute | Developer | |
| Tux-n-Tab Games | Developer | |
| Tuxini | Developer | |
| Tuxsoft | Developer | |
| Tvadict | Developer | |
| TwO Bros. | Developer | |
| TwanJones | Developer | |
| Tweeble | Developer | |
| TweedleDim | Developer | |
| Twelve Games | Developer | |
| TwelveOThirteen | Developer | |
| Twice Circled | Developer | |
| Twigs | Developer | |
| Twilight | Developer | |
| Twilight (Andrew Swann, Peter Tattersall, Sean Conran) | Developer | |
| Twilight (Dave Box, Jason McGann, Jonathan Dunn) | Developer | |
| Twilight (David Box, Wayne Billingham, Martin Severn, Noel Hines, Sean Conran) | Developer | |
| Twilight (Jason McGann, Andrew Swann, Peter Tattersall, Mark Mason) | Developer | |
| Twilight (Jason McGann, Peter Tattersall, Sean Conran) | Developer | |
| Twilight (Sean Conran) | Developer | |
| Twilight Express | DeveloperPublisher | |
| Twilight Frontier | DeveloperPublisher | |
| Twilight Games | Developer | |
| Twilight Software | DeveloperPublisher | |
| Twilight Zone Software | Developer | |
| Twin Hearts | Developer | |
| Twin Wisp Arts | Developer | |
| TwinBlazar | Developer | |
| TwinGhosts | Developer | |
| TwinSky Games | DeveloperPublisher | |
| TwinStar | Developer | |
| TwinWizards | Developer | |
| Twinbeard | Developer | |
| Twinbladers | Developer | |
| Twine279UTM | Developer | |
| TwineDoctors | Developer | |
| Twinfox | Developer | |
| Twinkle Soft | Developer | |
| TwinklensArt | Developer | |
| Twinster | Developer | |
| Twirlbound | Developer | |
| TwistdRabbit | Developer | |
| Twisted Corridor | Developer | |
| Twisted Hive | Developer | |
| Twisted II Studio | Developer | |
| Twisted Pixel Games | Developer | |
| Twisted Tree | Developer | |
| TwistedHawk | Developer | |
| TwistedTwigleg | Developer | |
| Twistplay | Developer | |
| Twisty_Fresh | Developer | |
| Two Eyes Games | Developer | |
| Two Flying Cats | Developer | |
| Two Hat Games | Developer | |
| Two PM | Developer | |
| Two Point Studios | Developer | |
| Two Ravens Games | Developer | |
| Two Rogue Games | Developer | |
| Two Scoop Games | Developer | |
| Two Scoop Studio | Developer | |
| Two Star Games | Developer | |
| Two Suns Interactive | Developer | |
| Two Tails | Developer | |
| Two Tales | Developer | |
| Two Tribes | DeveloperPublisher | |
| Two Tribes B.V. | Developer | |
| Two Tribes Interactive | Developer | |
| Two Tribes Publishing | Publisher | |
| Two-Bit Score | Developer | |
| TwoBitsKid | Developer | |
| TwoDev-Sensei | Developer | |
| TwoFaceGames | Developer | |
| TwoFive | DeveloperPublisher | |
| TwoFiveSix | Developer | |
| TwoFoldTales | Developer | |
| TwoGentlemen | Developer | |
| TwoGlassHams | Developer | |
| TwoMammoths | Developer | |
| TwoOfDiamonds | Developer | |