Gordon Freeman

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Steam Universe - Public
1,767,563 Members   |   59,473 In-Game   |   378,257 Online   |   39526 In Group Chat
Steam Trading Cards Group - Public
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SteamDB - Public
230,230 Members   |   13,693 In-Game   |   57,743 Online   |   8897 In Group Chat
Koç University
25 Members   |   2 In-Game   |   4 Online   |   0 In Group Chat