You are the dungeon overlord and swarms of heroes are invading your lair, attempting to steal your gems. You must stop them by building creature lairs, traps, and sending your avatar out to defeat them.
The mafia war has begun. You have to protect your territory against the enemy gang that tries to take over. Bring your armed men to the roofs to shoot and destroy every outsider moving in on your turf.
To Protect the Earth from alien invasion, you're given a ship class AT-021. But unfortunately the Earth doesn't have enough resources to supply new arms to the ship. Improve the ship by collecting weapons through battles and buy turrets to defend.