| t3 | TADS 3 Compiled Game |
| t3c | TADS 3 Game Configuration |
| t3u | Thief 3: Deadly Shadows Game Archive |
| table | High Heat Baseball 2000 Game Data |
| tah | 3DCG Mod File |
| tbm | Toribash Mod |
| tbn | 3DCG Binary Data |
| td4 | RollerCoaster Tycoon Track |
| td6 | RollerCoaster Tycoon Track Design |
| tdu | The Suffering: Ties That Bind Data |
| ter | Black and White 2 Terrain Data |
| tew | Wrestling Spirit Game Data |
| tf | Follin Player II Music |
| 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 |
| tgq | Dungeon Keeper 2 Game Movie |
| tgv | Need for Speed In-game Video |
| tgx | Stronghold Crusader TGX Image |
| thf | Reckless Thief Level Data |
| tiger | Tomb Raider Game Data |
| tik | Heavy Metal F.A.K.K. 2 TIKI Model |
| tinyid | Tiny Village Game Data |
| tiz | Infinity Engine Compressed Tileset |
| tja | Taikojiro Song Map |
| tjc | Taikojiro Song Map Sequence |
| tkr | Tinker Custom Level |
| tlk | Bioware Talk Table |
| tlnc | Splinter Cell: Double Agent Data |
| tmcl | Dead or Alive 5 Texture Map |
| tmo | 3DCG Animation and Pose Data |
| tmod | Terraria Mod |
| tni | Virtua Tennis Data |
