Four Colors is an online card game inspired by the classic UNO. The goal is to get rid of all your cards before the other players. Each player receives an initial number of cards at the start of the game. A card is placed face up in the center, setting the color or number to follow. On your turn, you must play a card that matches the color or number in the center. If you don't have a valid card, you must draw from the deck. The game includes special cards: skip, reverse, +2, +4, and wild. The +2 forces the next player to draw two cards. The +4 lets you choose a color and makes the next player draw four. The wild card allows you to change the current color. When you have only one card left, you must press the UNO button or risk a penalty. The first player to run out of cards wins the game.