Your mission in this strategy game with Command & Conquer style gameplay is to gather resources and build bases to create an army. You have to lead your army in 7 battles against the alien menace. To win each battle you must destroy all enemy main biostructures before the enemy destroys your headquarters. Use WASD or ARROW KEYS to scroll the map. Use YOUR MOUSE to select units. After selection, click LEFT MOUSE BUTTON to move or attack enemy building/unit. You get more information in short in-game tutorial. Good luck!