Unity is a multiplatform game development tool, designed from the start to ease creation. A fully integrated professional application, Unity just happens to contain the most powerful engine this side of a million dollars.
Check out early mockups of the Caves, Swamps and mountains in Greedy Guns. Because it can't be all about the shooting.
New visual effects, terrain enhancements, tens of vehicle models and more.
Finally v1.2 update is here ! New items, new animations, new buildings and weapons(WIP), and awesome inventory modifications.