Stone Age Wars (Steam key).

http://store.steampowered.com/app/521230/
Stone Age Wars is an RPG arcade game where you assemble a team of prehistoric soldiers, each with unique abilities and go up against waves of vicious enemies.
You activate their power ups by drawing symbols on the screen as perfect as you can with your cursor.
Play with 15 different classes, upgrade them to improve their strength, armour and speed and equip them with all kinds of weapons and masks which give you special bonuses.
Fight 10 unique bosses and earn valuable treasure chests!
Features
88 waves of enemies including 10 boss missions
Over 100 pieces of equipment for your soldiers
15 different classes
Unlimited upgrades
Fight 10 unique bosses and earn valuable treasure chests!