It was announced way back in 2009, but developer Gazillion Entertainment has now finally released a trailer for Marvel Heroes, the upcoming Unreal Engine 3-powered, free-to-play MMO, based on the ever-popular Marvel comics Universe.

Drawing upon the 8,000-plus heroes and villains in the Marvel Universe, Marvel Heroes allows players to become their favorite Marvel Super Heroes – from the popular Iron Man, Thor, Storm and Black Widow to the lesser known Squirrel Girl and Cable. Fans will be able to completely customize their characters by constructing costumes taken from each hero’s rich history, choosing from a huge array of super powers for each character, and finding thousands of other items. There are countless ways for players to tailor their experience.

In the game’s social areas, including Midtown Manhattan and the Xavier Institute for Higher Learning, players can meet up with other players, discover missions, and buy items from legendary Marvel characters. While pursuing missions, players will explore such famous Marvel landscapes as the Savage Land, Hell’s Kitchen and Mutant Town.

Watch the "gameplay teaser" trailer below or here for the HD option.