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Portal: Prelude: Difference between revisions
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m
Not a native steam game
m (+ external links) |
m (Not a native steam game) |
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| Line 11: | Line 11: | ||
| engine = [[Source engine]] | | engine = [[Source engine]] | ||
| released = | | released = | ||
Microsoft Windows | Microsoft Windows | ||
*International: October 9, 2009 | *International: October 9, 2009 | ||
| modes = Singleplayer | | modes = Singleplayer | ||