An ancient enemy is approaching earth, as the care taker of the planet it is up to you to activate the defences! Your mission sends you to a far away world, to collect three types of energy from the top of three towers, before returning to earth to blast those evil aliens out of the sky! Point and click to explore your environment, and solve the puzzles to complete your mission.
If you get stuck, try enabling Cluetips from the ingame menu, which will add extra tips and pointers (plus a mini-tutorial for the uninitiated).
If you like this game, check out the rest of the core series in my profile.