We have here a Tower Defense (survivor type) map built using the Icecrown Glacier tileset. This is a small to tiny map featuring a size of 96x64 of which only 84x54 is playable.

You are in control of what creeps get sent to your opponent on each level. The catch is that you can't see what your opponent is doing! You will have to infer based on past rounds what creeps are the best to send. There are eight distinct element towers in the game and a total of 48 towers that you can build.

You can hire creeps at the Training Grounds, a building that is located in the bottom corner of the map. Each new round, you will be given a certain amount of lumber. You will have to use all of your lumber to choose the creeps, or else the computer will randomly select the creeps to send. It's best to come up with the combination of creeps that you think your enemy will not be able to defeat. Sending lots of cheap creeps can quickly drain your enemy's lives if you know the enemy has a weakness to that creep. However, this thing can also backfire: your opponent will gain more bounty than average if they are able to defeat them all.

You will be able to hire spies from the Spies's Hideout building located on the top right of the map. Hiring spies will allow you to find out information about your opponent's tower. The value you receive represents how much your opponent has focused in that area. The value will persist in your multiboard, but it will not be updated until you hire some more spies. Spies can come in handy if you are unsure of what creeps to send, but still want to make a lot of damage to the opponent.

The Theurgist building is also located on the upper right of the map. From this building, you can cast various spells to either help you defeat creeps or hinder your opponent's chances of defeating theirs. They will only gain mana when your enemy leaks, so be careful to spend that mana wisely.

Mindmaster Tower Defense is an awesome passive-aggressive tower defense map where, if you don't have an opponent or just want to practice, you can challenge a computer opponent.

GL&HF!