In video games, swarm characters are units that are produced in large numbers and are used to overwhelm the enemy. They are typically weak individually, but they can be very effective when used in large groups.
Swarm characters are often used in strategy games and real-time strategy (RTS) games. In these games, players must manage their resources carefully and decide how to best use their units. Swarm characters can be a valuable asset, as they can be used to quickly overwhelm the enemy and gain an advantage.