In the game Perim Protector, to defend the city, you must build defensive towers along the path. To build a new tower, select one from the bottom and move your mouse the desired placement then click again to place it there. Once you are ready to face the UnderWorld attack, click “START”. You earn gold to buy (or upgrade) towers each time an UnderWorlder is repelled. You also receive an added “interest” bonus at the end of each round based on your balance. Each UnderWorlder that reaches Kiru City will inflict some damage to it is defense. Do not let the defense reach zero or you lose. All towers can be upgraded to be more powerful.
Mouse : Click to build and upgrade.