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Portal (2007) is a puzzle video game using the Orange Box engine. Taking place in the mysterious Aperture laboratories, the game operates as a puzzle-based shooter, allowing you to create portals that link to one another on any flat and large enough surface.

The gameplay is similar to Narbacular Drop by Nuclear Monkey Software, an indie game that won the IGF 2006 Student Showcase. Members of the development team who created the game were hired by Valve in 2005.

Content

• Portal (portal)
• Source 2013 shared (hl2)
• Source shared (hl2)
• Source 2013 Singleplayer engine branch

Trivia

• For some reasons, Valve decided to use Beta version of Portal as screenshots on the Steam page.

See also

• Portal Level Creation
• Portal 2

External links

• Portal article on Wikipedia
• EA Summer Showcase trailer: FileFront.com, GameSpot
• My Aperture Innovations (custom maps)