The main purpose of this game is to keep people playing together. We have two multiplayer modes: online and offline. In offline mode, you can add as many players as you want. In online mode, you can join any room you like. A player can join a team and play against multiple teams.
In this game, specific combinations of three cards are considered a set. Each of the four categories of features—color, number, shape, and shading—must be represented in the three cards as either all the same or all different. In other words, for each feature, the three cards should not have two cards showing one version of the feature while the third card shows a different version.
The game ends when the deck is empty.