Happy Wars looks a bit like the XBLA's answer to Fat Princess with this new trailer looking decidedly cheerful and violent by equal measures.
In this game up to 30 people can take each other on in 15 v 15 battles. There are three classes up for play - Warrior, Mage or Cleric and we're getting a successful team will have a mix of all three types. Battlefields range from grasslands to more exotic locations, such as the ocean floor.
There is some single player missions on offer, but it's needless to say that this is for the folks who play online a lot.
It's due for release in 2012. Good on Microsoft for greenlighting the project.