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Portal 2
Found 2 file extension associations related to Portal 2 and 1 file format developed specifically for use with Portal 2.
Platform, operating system: 
Multiplatform
Go to: Portal 2 description
Developer: Valve Corporation
Valve software list & details
Portal 2
Developer / company: Valve
Portal 2 draws from the award-winning formula of innovative gameplay, story, and music that earned the original Portal over 70 industry accolades and created a cult following.
The single-player portion of Portal 2 introduces a cast of dynamic new characters, a host of fresh puzzle elements, and a much larger set of devious test chambers. Players will explore never-before-seen areas of the Aperture Science Labs and be reunited with GLaDOS, the occasionally murderous computer companion who guided them through the original game.
The game’s two-player cooperative mode features its own entirely separate campaign with a unique story, test chambers, and two new player characters. This new mode forces players to reconsider everything they thought they knew about portals. Success will require them to not just act cooperatively, but to think cooperatively.
Portal 2 icon
Portal 2 icon
size: 128px x 128px (.png with transparency)
Portal 2 works with the following file extensions:
Note: You can click on any file extension link from the list below, to view its detailed information. The list of extensions used or otherwise associated with the application may not be complete, because many common file extensions on our website, such as jpg (pictures) or txt (text files), can be opened by a large number of applications, or are too general file format. However most, if not all directly associated file extensions should be listed with its appropriate program. Although its likely, that some file extensions may be missing from the list of associated file extensions with the application, yet they can be opened, be part of, or otherwise be associated with the program.
Portal 2 default file extension associations
.nut
Other file extensions associated with Portal 2
.mdl
Comparison table of actions that Portal 2 can perform with each of its associated file type beta
This table might not contain all possible associated or supported file types or may contain incorrect data.
If you need more information please contact the developers of Portal 2 (Valve Corporation), or check out their product website.
