Portal - The First Slice
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| Portal - The First Slice | |
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| Basic Information | |
Type(s) |
Demo |
| Valve Corporation | |
| Valve Corporation | |
| Action | |
| Technical Information | |
| Source | |
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Portal - The First Slice is the demo of the game Portal developed by Valve Software, originally made available via a special promotion with sales of specific graphics cards.
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