Portal 2
Moby ID: 51233
The following companies have been credited with this game. This does not necessarily imply they are the owner(s) of the IP.
Publisher History- ak tronic Software & Services GmbH (PlayStation 3, Windows, Xbox 360)
- Buka Entertainment (Windows)
- CyberFront Corporation (Macintosh, Windows)
- Valve Corporation (Linux, Macintosh, PlayStation 3, Windows, Xbox 360)
- Valve Corporation (Linux, Macintosh, PlayStation 3, Windows, Xbox 360)