This is a typical tower defense game.
You must wisely build towers along the path enemy will use.
Some enemies will be immune to bullets,ice,fire or bio weapons so keep your tower selection in balance.
And don't forget that you can also upgrade your towers.
After each level you earn skill points which you can use in skill shop to boost all your tower stats.
On higher levels there will be even more paths which will increase difficulty.
Played 16,001 times