Last year, old commander Grak go to big wall. Grak smash wall ALMOST TO PIECES. Zoob watch from far hill. Zoob cry happy tear. Beautiful day. But then defenders smash Grak back. Grak not come home. Zoob wait three whole minutes, then stop waiting. *belch*

YOU are new commander now. Zoob give you TEN YEARS to do what Grak not do — breach the big wall and send Zoob army through. Make valley peoples have very very bad day. This Zoob's dream. Do not ruin Zoob's dream.

Each year you get squads: orcs who smash wall, goblins who shoot defenders off the top, big stinky ogres who smash wall even more. You pick which squad attacks which section. Combat happen by itself. You just the boss. Be good boss.

Zoob believe in you. Small amount. Maybe medium amount if you look capable. You look... okay. Probably fine. Hopefully fine.