It's a brain dead auto battler. You protect the crystal by spawning units, getting upgrades after killing enemies. If you just stack the upgrades on the archer for example, you get one more archer per upgrade and they continually do more damage. Later you can get a spike trap that is very effective at killing enemies and are incredibly cheap. I almost...
There's just not enough effort here for me to recommend it.
Some of the basic menu options don't work, unit and mechanic descriptions are lacking, and there's no fast forward.
It's a neat concept that I hope the developer or anyone builds on. However this current game isn't worth it.
boring auto battler. Screenshots contain almost everything available.