Take control of 16 different units and 15 different turrets to defend your base and destroy your enemy. You start at the cavern man's age, then evolve. There is a total of 5 ages each with its units and turrets.
Destroy the enemy base while defending yours. You can build turrets to defend your base and units to attack the enemy's. The twist of the game is that you can evolve as well as unlock new units and defense means.