I like it. It reminds me of the Infectonator series. I hope to see some sequels in the future.
I don't like to do a lot of repetitive clicking like this, as it hurts my finger. I would prefer to use the clicks for once-in-a-while kind of powers like using potions, giving commands or some kind of big attack, like the "bombs" in shoot 'em ups. Or you could use the mouse power to hurt or heal by just hovering over the target instead of clicking. It could pick up items too, it seemed a little tedious to wait for the characters to grab the items after clearing a dungeon.
I recognize the Dungeon Crawl graphics and they make me wish for more Dungeon Crawl features, like branching dungeons or more race/class options or more bosses. It's good to feel like there's always more to discover.
The Shader felt very glitchy and hard to look at.