| Name | Developer | Publisher | Genre(s) | Operating system(s) | Date released |
| Tanarus | Verant Interactive | Sony Interactive Studios America | First-person shooter | Microsoft Windows | December 12, 1997 |
| Transport Tycoon | Chris Sawyer Productions | MicroProse | Business simulation game | MS-DOS, Mac | June 15, 1994 |
| Team Fortress 2 | Valve | Valve | First-person shooter | Microsoft Windows, Linux, macOS | October 9, 2007 |
| Team Fortress Classic | Valve | Valve | First-person shooter | Microsoft Windows, Linux, macOS | April 7, 1999 |
| Terraria | Re-Logic | Re-Logic, 505 Games, Spike Chunsoft | Action-adventure, survival | Microsoft Windows | May 16, 2011 |
| Thomas Was Alone | Mike Bithell | Mike Bithell | Puzzle-platformer | Microsoft Windows, Linux, OS X | June 30, 2012 |
| The Adventures of Fatman | SOCKO! Entertainment | SOCKO! Entertainment | Point-and-click adventure | Microsoft Windows | May 2003 |
| The Adventures of Lomax | Psygnosis | Psygnosis | 2D platformer | Microsoft Windows | October 22, 1996 |
| The Big Three | SDJ Enterprises | | Strategic-level wargame | MS-DOX | 1989 |
| The Binding of Isaac: Rebirth | Edmund McMillen | Nickels Inc | Roguelike | Microsoft Windows | November 14, 2014 |
| The Legend of Zelda | Nintendo EAD, Flagship, Grezzo, Nintendo EPD | Nintendo | Action-adventure | NES, SNES, Game Boy, Nintendo 64, Game Boy Color, Game Boy Advance, GameCube, Wii, Nintendo DS, Nintendo 3DS, Wii U, Nintendo Switch | February 21, 1986 |
| The Lord of the Rings Online | Turbine, Inc. | Turbine, Inc. | MMORPG | Microsoft Windows, macOS | April 27, 2007 |
| The Matrix Online | Monolith Productions | Sega, Warner Bros. Interactive Entertainment | Massively multiplayer online role-playing game | Microsoft Windows | March 22, 2005 |
| The Punisher (2005 video game) | Volition | THQ | Action, third-person shooter | Microsoft Windows | April 12, 2004 |
| Thief | Eidos Montréal | Square Enix | Stealth | Microsoft Windows | February 25, 2014 |
| Thief II: The Metal Age | Looking Glass Studios | Eidos Interactive | Stealth | Microsoft Windows | March 23, 2000 |
| Thief: The Dark Project | Looking Glass Studios | Eidos Interactive | Stealth | Microsoft Windows | November 30, 1998 |
| Thief: Deadly Shadows | Ion Storm | Eidos Interactive | Stealth | Microsoft Windows | May 25, 2004 |
| Titan Quest | Iron Lore Entertainment | THQ | RPG | Microsoft Windows | June 26, 2006 |
| Tom Clancy’s Rainbow Six Siege | Ubisoft | Ubisoft | First-person shooter | Microsoft Windows | December 1, 2015 |
| Tom Clancy's Splinter Cell | Ubisoft Montreal, Ubisoft Shanghai, Gameloft | Ubisoft, Gameloft, Aspyr Media | Stealth | Microsoft Windows, macOS | November 17, 2002 |
| Tom Clancy's Splinter Cell: Blacklist | Ubisoft Toronto, Ubisoft Montreal, Ubisoft Shanghai | Ubisoft | Action-adventure, stealth | Microsoft Windows | August 20, 2013 |
| Tom Clancy's Splinter Cell: Chaos Theory | Gameloft, Ubisoft Montreal | Gameloft Ubisoft | Stealth | Microsoft Windows | March 21, 2005 |
| Tom Clancy's Splinter Cell: Conviction | Ubisoft Montreal, Gameloft | Ubisoft, Gameloft | Action-adventure, stealth | Microsoft Windows, macOS | April 13, 2010 |
| Tom Clancy's Splinter Cell: Double Agent | Ubisoft Shanghai, Ubisoft Montreal, Ubisoft Milan | Ubisoft | Stealth | Microsoft Windows | October 17, 2006 |
| Tom Clancy's Splinter Cell: Pandora Tomorrow | Ubisoft Shanghai, Ubisoft Milan, Ubisoft Annecy, Gameloft | Ubisoft | Stealth | Microsoft Windows | March 23, 2004 |
| Tomb Raider | Core Design | Eidos Interactive | Action-adventure | MS-DOS | November 14, 1996 |
| Tomb Raider II | Core Design | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | November 24, 1997 |
| Tomb Raider III | Core Design | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | November 20, 1998 |
| Tomb Raider: The Last Revelation | Core Design | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | November 24, 1999 |
| Tomb Raider: Chronicles | Core Design | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | November 24, 2000 |
| Tomb Raider: The Angel of Darkness | Core Design | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | June 30, 2003 |
| Tomb Raider: Legend | Crystal Dynamics | Eidos Interactive | Action-adventure | Microsoft Windows | April 7, 2006 |
| Tomb Raider: Anniversary | Crystal Dynamics | Eidos Interactive | Action-adventure | Microsoft Windows, macOS | June 1, 2007 |
| Tomb Raider: Underworld | Crystal Dynamics | Eidos Interactive | Action-adventure | Microsoft Windows | November 18, 2008 |
| Tomb Raider (2013) | Crystal Dynamics | Square Enix | Action-adventure | Microsoft Windows, macOS | March 5, 2013 |
| Torchlight | Runic Games | Runic Games | Action RPG, hack and slash | Microsoft Windows, Linux, macOS | October 27, 2009 |
| Torchlight II | Runic Games | Runic Games | Action RPG, hack and slash | Microsoft Windows, Linux, macOS | September 20, 2012 |
| Total Annihilation | Cavedog Entertainment | GT Interactive | RTS | Microsoft Windows, macOS | September 30, 1997 |
| Total War: Rome II | The Creative Assembly | Sega | RTS | Microsoft Windows, macOS | September 3, 2013 |
| Total War: Shogun 2 | The Creative Assembly | Sega | RTS | Microsoft Windows, macOS | April 15, 2011 |
| TrackMania 2: Canyon | Nadeo | Ubisoft | Racing | Microsoft Windows | September 14, 2011 |
| TrackMania Forever | Nadeo | Deep Silver, Enlight, Focus Home Interactive, Digital Jesters | Racing | Microsoft Windows | April 15, 2008 |
| TrackMania Nations ESWC | Nadeo | Deep Silver, Enlight, Focus Home Interactive, Digital Jesters | Racing | Microsoft Windows | January 28, 2006 |
| TrackMania Nations Forever | Nadeo | Focus Home Interactive, Valve | Racing | Microsoft Windows | April 16, 2008 |
| TrackMania Sunrise | Nadeo | Digital Jesters, Enlight | Racing | Microsoft Windows | April 2005 |
| TrackMania United | Nadeo | Deep Silver, Enlight, Buka, QV Software, Valve | Racing | Microsoft Windows | November 17, 2006 |
| Train Simulator | Dovetail Games | Dovetail Games | Simulation | Microsoft Windows | 2009 |
| Transformice | Atelier 801 | Atelier 801 | Massively multiplayer online, Platform | Microsoft Windows | 2010 |
| Transistor | Supergiant Games | Supergiant Games | Action RPG | Microsoft Windows, Linux, macOS | May 20, 2014 |
| Trespasser | DreamWorks Interactive | Electronic Arts | Action-adventure, first-person shooter | Microsoft Windows | October 28, 1998 |
| Tribes 2 | Dynamix | Sierra | First-person shooter | Microsoft Windows, Linux | March 30, 2001 |
| Tribes: Ascend | Hi-Rez Studios | Hi-Rez Studios | First-person shooter | Microsoft Windows | April 12, 2012 |
| Tribes: Vengeance | Irrational Games | VU Games | First-person shooter | Microsoft Windows | October 5, 2004 |
| TRON: Evolution | Propaganda Games | Disney Interactive Studios | Action-Adventure | Microsoft Windows | November 25, 2010 |
| Tropico | PopTop Software, Feral Interactive | Gathering of Developers, MacSoft, Feral Interactive | Construction and management simulation | Microsoft Windows, macOS | April 24, 2001 |
| Tropico 2: Pirate Cove | Frog City Software | Gathering of Developers, Take-Two Interactive | Construction and management simulation | Microsoft Windows, macOS | April 28, 2003 |
| Tropico 3 | Haemimont Games | Kalypso Media | Construction and management simulation, City-building game | Microsoft Windows, macOS | October 20, 2009 |
| Tropico 4 | Haemimont Games | Kalypso Media | Construction and management simulation, City-building game | Microsoft Windows, macOS | August 26, 2011 |
| Tropico 5 | Haemimont Games | Kalypso Media | Construction and management simulation, City-building game | Microsoft Windows, macOS | May 23, 2014 |
| Tropico 6 | Limbic Entertainment | Kalypso Media | Construction and management simulation, City-building game | Microsoft Windows, macOS | March 29, 2019 |
| True Love | Software House Parsley | CD Bros., Otaku Publishing | Visual novel | MS-DOS, Microsoft Windows | July 9, 1995 |
| Tzar | Haemimont Games | Take-Two Interactive, FX Interactive | Real-time strategy | Microsoft Windows | March 31, 2000 |
