Shackled Hand.
Wizards found an ancient shrine they can use to bind your hand. When they do you need to trust your creatures will stop the invading heroes using nothing but their own wits.
Download it here.
I made the map quite easy, and even though you are likely to lose creatures in battle, that is no reason to reload. Experienced players are encouraged to play this map 'ironman', so without saving and loading in between.
There will be sections of the map where you will be forced to defend your dungeon without the ability to pick up units. The powerful rooms have been balanced to stop you from getting a huge army of undead or converted heroes.
Feedback welcome of course, I'm sure I made some mistakes. And I'd like to know if you enjoyed it and why (not).
Requires KeeperFX 0.4.9 or newer to play.