http://ludumdare.com/compo/ludum-dare-31/?action=preview&uid=10263
You goal is to destroy the enemy city as quickly as possible before they extend their defense system to exerminate you!
Win conditon
[ Easy ] You exterminate the red city
or
[ Hard ] You build 10 cities.
Upgrades unlock as you progress
You can test at http://ludumdare.com/compo/ludum-dare-31/?action=preview&uid=10263