Provocator

You play the role of the last fighter pilot remaining and must protect a convoy of HUGE spaceships from 32 waves of attacking aliens. Several ships in the convoy have forest domes that supply the fleet with food and oxygen. The player is tasked with protecting these domes from alien squadrons that launch increasingly frequent attacks on them. When a dome is under attack, a warning sound alerts the player to the threat and if it isn't met within 15 seconds, the dome is permanently destroyed. If ...