I learned the hard way that you cannot spam imps, not because the game wont let you but because my first monument was almost made entirely of stinky socks and fish XD the concept and gameplay are here super interesting take and the fact the difficulty depends entirely on the player selecting the amount of imps is super cool! They were also super cute i love them :p in my opinion i would make it so the number of items required also changes with each monument, maybe the first one only requires 30 items instead of 100 could help with pace of play! overall great game!!