Nerfherder

Groups

All Groups
All Groups
Half-Life Library - Public
31 Members   |   0 In-Game   |   11 Online   |   0 In Group Chat
Science and Industry Community - Public
711 Members   |   18 In-Game   |   218 Online   |   34 In Group Chat
Steam Trading Cards Group - Public
2,091,337 Members   |   70,258 In-Game   |   415,436 Online   |   175047 In Group Chat