| App Type | demo |
| Full Game | Portal |
| Release Date | May 8, 2008 |
| Developer | Valve |
| Publisher | |
| Genres | Action |
| Supported Systems | Windows, Mac |
| Price | Free |
| Required Age | 0+ |
| Metacritic | 90/100 |
Help yourself to a generous, 11-level serving of Portal: First Slice, the official demo for the game that challenges you to think with portals. The winner of numerous Game of the Year awards introduces you to the test chambers at the Aperture Science Enrichment Center, where you'll learn to solve physical puzzles by opening portals to...
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Game demo
Partial Controller Support
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