The title of the game sounded to me like it's going to be something like Mausoleum Tycoon, but I got where the "maker" part came from when I started playing :D The game was very solid and polished, and the gameplay didn't disappoint me (although it wasn't a Tycoon :P). Simple but well executed idea with good level design and very, very nice aesthetics.
I think I encountered only one bug in level 4 or 5 not sure, where something killed me for no reason, but it wasn't game breaking and 48h is not a lot of time :)
Great work!