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| Rating_os | 5 |
| Rating_num | 24758 |
| Author | Valve |
| Author url | https://store.steampowered.com/developer/valve?snr=1_5_9__2000 |
| Requirements | MacOS X 10.6.4 or higher (Snow Leopard Graphics Update required) |
| Release date | Nov 17, 2008 |
