Two things:
Dungeon Story is not free in Australia, yet seems to be free everywhere else. If I dig 100000000000000, Dungeon Raid and the Zoo Keepers, is it worth a buck?
I think you missed the sale I'm a bit torn on the game. It is very much a clone of Dungeon Raid, it just has more persistent leveling instead of being a roguelike. Which I can appreciate, but the game also feels very ameraturish. My bigger problem is it almost feels too much like Dungeon Raid, but in the areas DS does differ I prefer DR. Not bad for a buck for DR fans, but don't expect a whole lot.
I grabbed 10000000 earlier despite my misgivings over its less than impressive looks. Not sure it's clicking with me yet either. The game mechanics are hard. Either I can't find a key when I need it, or I can't properly line them up fast enough. This might take practice and a few upgrades I guess.