It reminds me a bit of Soda Dungeon.
Reached wave 323, with $39220. Guess that after reaching the healer goblins there aren't any more enemy types, and also only three types of dwarves (brown miner, blue swordsman and blue healer). Nothing to spend my money on, since dwarves only cost $50 at most. But the start of the game was fun, and the artstyle is creative.
Cool little prototype, would be nice to see an expanded version in the future.