Marvel Heroes, also known as Marvel Heroes 2015, Marvel Heroes 2016 and Marvel Heroes Omega, was a free-to-play massively multiplayer online action role-playing video game developed by Gazillion Entertainment and Secret Identity Studios. Characters such as Iron Man, Captain America, Deadpool, and Wolverine were playable characters that could be unlocked in the game. The story was written by Brian Michael Bendis. Players who pre-purchased a game pack received early access to the game on May 29, 2013. The game was officially launched on June 4, 2013, on Microsoft Windows. An OS X version followed in November 2014. The game was renamed to Marvel Heroes 2015 on June 4, 2014. The game was renamed Marvel Heroes 2016 in January 2016.