Gazillion Entertainment and Marvel Entertainment announced today that Marvel Super Hero Squad Online is now live! This kid-friendly free-to-play MMO allows players to take control of some of their favorite Marvel heroes. It's accessible through your browser, so all you need to do is head over to the game's site and hit the big "Play Now" button to get started.

While the game is free-to-play, players can subscribe to unlock additional heroes, missions and rooms for the HQ. They can also spin the Prize Wheel for additional in-game Gold, Silver and items. You can watch the new launch trailer below.

The Super Hero Squad Online launch announcement follows yesterday's reveal of the first details for Gazillion's upcoming Marvel Universe MMO. This game will also be free-to-play, but promises to focus on core gamers rather than children.