From Wikipedia: Gameplay follows on the traditional gameplay of the series, in which teams of worms take turns to use a variety of weapons and items in order to eliminate the opposing teams. The game, like Worms Revolution, has four different classes each improved with new special abilities. This is also the first Worms game to add Steam Workshop support. Worms: Clan Wars improves online gameplay. The game allows players to create clans and chat on WormNET, the game's own lobby and chat system. Source: Wikipedia, "Worms: Clan Wars", available under the CC-BY-SA License.