Interesting idea, but game lacks content. There are very little skills you can get, so you basically always get what you want.
There are only two enemies, so the waves feel dull and unchallenging, unless there are so many enemies that you can't do anything.
Ai of the followers should be improved, they tend to stuck when surrounded and it doesn't seem like they try to get out.
I love graphics style during battle, but inventory is horrible and very difficult to navigate.