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Steam Universe - Public
1,793,765 Members   |   27,264 In-Game   |   255,247 Online   |   42625 In Group Chat
Steam Trading Cards Group - Public
2,251,255 Members   |   33,047 In-Game   |   310,338 Online   |   217884 In Group Chat
Team Fortress 2 Competitive Beta - Public
126,437 Members   |   2,678 In-Game   |   21,434 Online   |   1680 In Group Chat