TriATri is a must-follow trick-taking game in which the players each aim to score the most points. The "lead suit" is determined by the color of gem chosen by the lead player, from either in front of themselves or a central pool. The winner of the trick will take the gem. Players earn positive points for complete sets of gems (1 of each color), and will typically lose points for incomplete sets. The cards have a relationship such that their value may be multiplied depending upon the color of the previously played card.