DOTA stands for Defense of the Ancients. It is a computer game that was created by Blizzard Entertainment. The game is played by two teams of five players. Each team has a base, and the objective of the game is to destroy the other team's base. The game is played on a map that is divided into three lanes, and each team has three heroes that they can control. The heroes can level up and gain new abilities as they kill enemies. The game is won by either destroying the other team's base, or by killing all of the other team's heroes.