DC Universe Online is a free-to-play massively multiplayer online role-playing game (MMORPG) set in the DC Comics universe. Players create their own superheroes or villains, choosing from various powers, abilities, and appearances. The game features iconic characters like Batman, Superman, and Wonder Woman, allowing players to interact with them and participate in missions. The game offers a mix of solo and cooperative gameplay, with players teaming up to complete quests and battle enemies. It includes various locations from the DC Universe, such as Gotham City and Metropolis, providing a rich environment for exploration and adventure.