Deep underground, there is a vault where a dark wizard has been storing his diamonds and gold for a very long time. However, now all these treasures are in danger. The humans have found out about them and now they are readying an invasion into your murky realm. You need to protect the underworld and the treasures it hides! There are various constructions and traps at your disposal, as well as different spells that you can use to stop the attackers. Each level will be even more complicated!