Did try it for like 15 minutes and then deinstalled it. The enemies do spawn so slow and also there was no indicator where the enemies spawn so you had to constantly look around.

Maybe the endgame would feel better. But then don't make the entry so bad...

This is a pleasant tower defense game. The challenge does plateau at some point once you get enough upgrades. As long as you aren't reckless with resources, this game is definitely beatable (I beat this game on Brutal difficulty [hardest] without looking up any guides or tutorials). The way enemies show up is in waves, which is convenient at first but gets a little redundant and predictable as you get stronger and stronger. Overall it was a good experience. I hope to see more from the developers of this game.