Online games that offer a 1v1 two-player mode are usually sports games and fighting games. In a free 2 player game online, you can either cooperate with your friend and compete against the AI, or challenge your friend in a 1v1 match to see who is the better player. As compared to single-player games, where you compete against a PC opponent, these games can be played by two or more players and they are much more fun. 2 player games are a popular category of Friv games online.
