Nice game, going into the well and coming back to the traders reminded me of the old Diablo days :)
I also liked how I had to learn the map and figure out which resources spawn where, although the only really important resource was the ectoplasm for the health upgrades. I didn't use the shrines too much towards the end, I didn't feel they affect the ghosts too much - they made the their attack rate slower, right?
I got to the end, although I didn't unlock the cactus from the cage, is that even possible?