Gotham City Impostors by Monolith Productions was released back in February for Xbox Live Arcade, PlayStation Network, and PC as a paid-for download for $15. Today, Warner Bros. Interactive announced that the game is now free to play on the PC via Steam. Gotham City Impostors is a first-person shooter video game set in the Batman universe. Check out the new trailer and read the full press release after the break for more info.

Burbank, CA – August 31, 2012 – The Bats and Jokerz are running free! Warner Bros. Interactive Entertainment today announced that the PC version of Gotham City Impostors is now Free To Play. The latest version of the game is now available for download at no cost via Steam® and is Steamworks enabled.

Those who download the Gotham City Impostors Free To Play via the Steam client will have access to the original game, as well as all DLC packs, which includes new maps, weapons, mascots and more. Players will also experience join-in-progress matchmaking that ensures gamers are placed into populated matches.

Developed by Monolith Productions and previously released for PC, Xbox 360® video game and entertainment system from Microsoft and PlayStation®3 computer entertainment system in February 2012, Gotham City Impostors allows up to 12 players to battle for control of an unhinged Gotham City overrun by Impostors inspired by the DC Comics characters Batman and The Joker.

Players can engage in deliriously fast paced, uniquely vertical, and completely unconventional urban warfare where progress supports leveling up and access to a mind-boggling array of customization options. Unlock new Bats or Jokerz costumes and build your own specific loadout from a huge assortment of traditional and homebrew weaponry, equipment, and perks. Gadgets such as the Glider Rig, Grappling Hook, and Spring Boots give gamers unprecedented mobility options, while support items like the Bear Traps and Boomerang, open up new tactical options.

The game features eight maps and four modes inspired by the DC Comics’ Batman license. The maps include 25th Floor, Ace Chemical, Amusement Mile, Arkham Asylum, Crime Alley, The Docks, East End, and Gotham Power. Gamers can choose from several gameplay modes – Team Deathmatch, Fumigation, Bounty Hunter or Psych Warfare modes – and engage in all-out combat, or they can choose the Challenges mode, a single-player mode that allows players to safely explore the different maps and practice using different weapons, support items and gadgets.