Carveola Incident: 2118 AD is one part first-person shooter and one part tower defense game. The year is 2118 A.D. and you've been sent to a newly discovered planet that is inhabited by hostile creatures. Place turrets along your barricade and shoot the approaching creatures to prevent them from damaging your barricade and turrets. Kill the flying alien to stop the creatures from being spawned and complete the level. Purchase or sell turrets, buy new weapons, unlock orbital strikes, and upgrade your barricade after each level.