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ThinkingWithPortals Mapping - Public
31,156 Members   |   322 In-Game   |   3,179 Online   |   303 In Group Chat
Portal 2 Authoring Tools - Beta - Public
143 Members   |   3 In-Game   |   27 Online   |   14 In Group Chat
Portal 2: Pro Gamers - Public
552 Members   |   22 In-Game   |   127 Online   |   65 In Group Chat
Human Fall Flat Workshop - Public
196,238 Members   |   2,661 In-Game   |   21,190 Online   |   19336 In Group Chat
Coop Hub Buddies (Portal 2) - Public
1,905 Members   |   78 In-Game   |   446 Online   |   950 In Group Chat
Development Bros
2 Members   |   0 In-Game   |   1 Online   |   3 In Group Chat
Portal 2 Speedrunners - Public
1 Member   |   0 In-Game   |   1 Online   |   0 In Group Chat
Portal 2 Modding - Public
1 Member   |   0 In-Game   |   1 Online   |   0 In Group Chat