"Set" is a free board game available on Android developed by trian. The game offers two modes of gameplay - single player and multiplayer, which can accommodate 2-4 players.

In the game, players are required to find sets of three cards. The cards have four features - color, shape, number, and shading - and players must identify sets where all three cards share the same feature or have all different features.

The game has a simple yet engaging interface, with cute emoji available for communication between players in multiplayer mode. Overall, "Set" is an enjoyable and addictive game that offers a great way to pass the time alone or with friends.