Gamestorm

Ogre and its sequel, G.E.V., are tactical ground combat games set in the late 21st century. In 2085 A.D., armored warfare is faster and deadlier than ever. Hovercraft, tanks and infantry slug it out with tactical nukes. But the most feared weapon of all needs no human guidance. It's the giant cybernetic tank called the Ogre.

Simple vector-based movement; even simpler combat.