StarCraft Campaign Map Editor
Up StarCraft Half-Life Diablo Dark Reign Quake StarCraft Campaign Map Editor

 

This is not a game, it is a map editor. But I have included it here because it is such a great map editor. It has a simple to use interface, and allows you to create all the types of maps that the creators of StarCraft has made. The editor is much easier to use than the Dark Reign map editor, and it allows for more advanced computer AI controls to make your map more interactive rather than just a plain map.