Widescreen Patch Thief 2
Rarely seen and never caught, Garrett is a master thief — the best who ever was. Able to sneak past any guard, pick any lock, and break into the most ingeniously secured residences, he steals from the rich and gives to himself, making a living in the dark and foreboding City. Here crime and corruption are commonplace, wealthy nobles prey on the poor and each other, and magic and machinery coexist uneasily. World-weary and cynical, Garrett wants nothing more than to be left alone to ply his trade.
But things never work out that way. ALL OF THESE PROGRAMS NEED WRITE ACCESS TO THE T:DS FOLDER.
Thief 2 Walkthrough Metal Age
Three community-made patches for Thief 3. Together they unlock native-resolution widescreen and all manner of smaller visual tweaks.
Patch Thief
In Windows Vista or later, right-click and select 'Run as administrator'. T3tweak-1.2 Installer for T:DS Tweaker, which can apply various visual and aural tweaks to the game like making text smaller and reducing/eliminating the blue 'interactive object' glow. T3FovPatch Patcher that unlocks widescreen field of view settings. See the link below for setting widescreen resolutions.
Thief 3 Patch
T3widescreen A patcher that fixes the game freezing on exit and when loading a saved game when running widescreen. You may or may not need this.