Odin

Odin is a short card game about getting rid of your cards. On your turn you play one or more cards of the same color or same number, and they must be higher than the cards already in the middle.

The trick is that cards combine into a number: playing a 3 and a 5 makes 53. After you play, you take one of the cards you beat into your hand. The first player to get rid of their cards ends the round, and the player with the fewest points left wins.