Be sure have the latest alpha. (avoid gamecrash)
Be Fast, think quick or die.
Defeat 3 agressive enemy Keepers under massive waves of Heroes.
You favourite Creatures to beat the heroes gonna be the biles.
Good luck
Difficulty : DeeperDungeons
Mind that the Portals have an effect on your total creatures 1=25 2=30 3=35 (35+only the enemy keepers)
When I defeat the green player, the game crashes. I have tried it twice in a row and same result. In the other hand, its a good map !