Genuinely fun game that I would recommend to anyone looking for a few hours to kill.
There's not much depth for now as it is an early access game, I hope that changes in the future.

Some changes I'd like to see:
+ Ability to speed up the game; something like a 2x speed, because the early game is really slow and I would like to get past that as fast as possible on repeated runs
+ Endless mode
+ Full English translation (some stuff aren't fully translated and others are misspelled, e.g. Archeive, which I think is either supposed to be Archive or Achievements, most likely the latter)
+ Replace the AI art. It's a free game so I understand if it's not within budget, but if it ever gets to 1.0 and they put a price on it, they should replace all of the AI art.

All in all it's a good game with a solid base to build off of. I hope to see it progress further.

*Starter tip: Before you have the meta progression unlocked/maxed out, I suggest you use the Skeleton Queen to push past your limits to earn some early currency, since her ability to summon tier 2 skeleton knights is broken for early game. You can literally summon past your population limit with her special character ability.