| .umd |
Splinter Cell Blacklist Game Data File |
| .unityproj |
Unity 3D Project |
| .ups |
UPS Patch File |
| .uasset |
Unreal Asset File |
| .u8 |
3D Lemmings Audio File |
| .utw |
Unity Whirld File |
| .ucl |
Killing Floor System File |
| .ulx |
Glulx Game File |
| .unif |
UNIF ROM File |
| .umap |
Unreal Engine Map File |
| .updatr |
iConomy Update File |
| .uqm |
The Ur-Quan Masters Game Data File |
| .ucm |
Crazy Machines Model File |
| .ut8 |
Ghost Master Language File |
| .vb |
Visual Basic Project Item File |
| .vob |
DVD Video Object File |
| .vtf |
Valve Texture File |
| .vmx |
VMware Configuration File |
| .vpk |
Valve Pak |
| .vdf |
Valve Data File |
| .vol |
Video Game Archive |
| .v64 |
Nintendo 64 ROM Dump |
| .vmf |
Valve Map File |
| .vcm |
Vice City Mod Manager File |