| tcf | Theme Park World Game Data |
| tcm | Total Club Manager 2003 Saved Game |
| tcpcdx | Train Simulator Texture Data |
| tct | Championship Manager 4 Game Data |
| td4 | RollerCoaster Tycoon Track |
| td6 | RollerCoaster Tycoon Track Design |
| tdb | Ballance Highscore Database |
| tdf | Total Annihilation Features Data |
| tdt | SimTower Game Data |
| tdt | SimTower: The Vertical Empire Game Data |
| tdu | The Suffering: Ties That Bind Data |
| te2 | Conquest of the New World Game Data |
| teag | ToME Saved Game Data |
| teaz | ToME Saved Zone Data |
| ted | Star Wars: Empire at War Map |
| ted | Tribes 2 Game TED Data |
| ter | Black and White 2 Terrain Data |
| tew | Wrestling Spirit Game Data |
| tex | Hitman Game Text Data |
| texture | Trainz Texture Data |
| texturepack | Arena Wars Texture Package |
| tf | Follin Player II Music |
| tf2 | Team Fortress 2 Game Data |
| tfc | Unreal Engine 3 Texture File Cache |
| tfr | TIE Fighter Pilot File |
| tgam | Wakfu Game Data |
| tgh | Guitar Hero 3 Tier Settings |
| tgi | SimCity 4 Type Group Instance Data |
| tgpcdx | Train Simulator Texture Data |
| tgq | Dungeon Keeper 2 Game Movie |
| tgv | Need for Speed In-game Video |
| tgx | Stronghold Crusader TGX Image |
| thf | Reckless Thief Level Data |
| ti | Homeworld Tactical Icon Data |
| tiger | Tomb Raider Game Data |
| tik | Heavy Metal F.A.K.K. 2 TIKI Model |
| til | CTGP Revolution Texture Archive |
| til | Delta Force Tile Data |
| til | ROSE Online Map List Data |
| tileskinzip | Elemental: War of Magic Tile Skin |
| tinyid | Tiny Village Game Data |
| tis | Infinity Engine Tileset Data |
| tit | Train Simulator Track Interactive Table Data |
| tiz | Infinity Engine Compressed Tileset |
| tja | Taikojiro Song Map |
| tjc | Taikojiro Song Map Sequence |
| tkr | Tinker Custom Level |
| tlk | Bioware Talk Table |
| tlk | Infinity Engine Talk Data |
| tlnc | Splinter Cell: Double Agent Data |
| tls | PilesOTiles Game Data |
| tm | Battlefield 2 Tree Mesh Data |
| tmcl | Dead or Alive 5 Texture Map |
| tml | Jurassic Park: Operation Genesis Skin Data |
| tmo | 3DCG Animation and Pose Data |
| tmod | Terraria Mod |
| tmr | The Simpsons: Cartoon Studio Data |
| tni | Virtua Tennis Data |
| toc | Battlefield 4 TOC Data |
| toc | World of Warcraft Add-on TOC |
| tod | Crysis Time of Day Data |
| toh | Infinity Engine Talk Override Data |
| tor | NBA 99 In-game Animation Data |
| tor | Star Wars: The Old Republic Asset Data |
| tot | Infinity Engine Talk Override Data |
| toy | Catz and Dogz Game Data |
| tp4 | RollerCoaster Tycoon Track Picture |
| tpac | Mount and Blade II: Bannerlord Package |
| tpj | Delta Force Terrain Project |
| tpl | Mario Kart Wii Menu Image |
| tqm | Titan Quest Mod Manager File |
| tr2 | Tomb Raider 2 Game Data |
| traprofile | Tomb Raider: Anniversary Profile Data |
| trasave | Tomb Raider: Anniversary Saved Game |
| trayitem | The Sims 4 TrayItem Data |
| tre | Star Wars Galaxies TRE Archive |
| trf | Train Simulator Traffic Pattern |
| trk | GeneRally Track Data |
| trk | IL-2 Sturmovik Track Data |
| trk | Pacific Fighters Offline Track |
| trk | RollerCoaster Tycoon Track Model |
| trk3 | Rail3D Layout Data |
| trmdl | Pokemon Legends: Arceus Model Data |
| trn | Delta Force Terrain Data |
| trp | Ports of Call Saved Game |
| trusave | Tomb Raider: Underworld Saved Game |
| ts1 | VirtualBus Texture Description |
| ts4script | The Sims 4 Script |
| tsc | Cave Story Script |
| tsc | FUEL Game Script |
| tsd | Delta Force Tile Surface Definition |
| tsi | ROSE Online Interface Data |
| tso | 3DCG Model Data |
| tspeed | TyperSpeed Sepia Settings Data |
| tsr | TSR Launcher Data |
| tt | Star Trek: Armada Techtree Information |
| ttarch | Telltale Games Archive |
| ttarch2 | The Walking Dead: Season Two Game Data |
| ttg | Red Alert 3 Game Data |
| tth | Vampire: The Masquerade - Bloodlines Game Data |
