Stone age defense for Android

Stone age defense game for android description: A long time ago the people were not as smart so you will have to help this tribe in this fun tower defense game.
They do not know much about all the weapons you can make so your job will be to primarily build towers around the areas where the enemies will be walking in order to start their attack.
Keep in mind that your resources are limited and they only come from killing enemy units and this is where the fun part of this prehistoric game begins as you will need to manage them really well to make the most out of every situation.
The enemies are coming in waves and you will need to try and keep the walls from falling under their attack each time.
Have a great time helping out this poor people as you are their last hope in this cool defense game.
Call a wave early if you think you are well prepared for it and this will grant you some additional bonuses that can be useful for the next fights.