X-COM: UFO Defense is a strategy game with turn-based battle and resource management. In this game there are two different modes of interface. First, there is the Geoscape, which is basically a picture of the Earth that shows alien and XCOM activities. The second interface mode is the Battlescape. This is where the actual fighting goes on. In the Battlescape, you can do everything from shooting aliens, running around, blowing up buildings, laying ambushes, sieging UFOs, killing your own guys, and simply aborting the mission. Obviously, there's a wide range of activities to indulge your demented mind in.