In OXYGIN, players make words from letters of the same suit, and "Gin" when they have a hand full of words. A bonus is received for playing the longest word. The game is played in rounds with players taking multiple turns per round. The first player to begin the game is the player to the dealer’s left. A player’s turn is comprised of three steps (take a card, discard a card, and declare "Gin" if possible) and once completed, the next player going clockwise has their turn, and so on. This continues until the endgame is triggered for the round by a player who declared "Gin" during their turn. All players reveal their hand and any words are challenged (if needed). The player with the longest word wins the hand.