Portal Overview
A unique take on puzzle gameplay by the makers of Half-Life. Portal is a new type of single player game that changes how players approach, manipulate, and surmise the possibilities in a given environment in a manner similar to how the Gravity Gun changed our approach to how an object may be leveraged in any given situation.Portal Screenshots
Portal Details
| Published by | Valve |
| Developed by | Valve / Nuclear Monkey Software |
| Genre | First-Person Shooter |
| Release Date | US: TBA 2006 |
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