Paintball is a game in which players shoot harmless pellets full of colored dye at each other. Some people play paintball in teams, mimicking a military-style battle.
During a paintball game, players use paintball markers, also known as paintball guns, to shoot capsules of paint at each other. Most people play for fun, although there are also official paintball leagues and teams, complete with organized tournaments. The US military has even used paintball as a way for soldiers to train for battle. The game of paintball was invented in 1981, and the first matches were played in New Hampshire.