I wish this game had more attention ngl, really underrated. My only gripe about it is the non-existent late game. Because there's no power-creep. Right after Wave 40, your skill tree and the weapons available have already plateau'd so everything else gets tougher and even the Specialist's bonus damage to bosses becomes really trivial.

All of this can be amended by editing the whole Skill Tree to make it deeper and actually have a variety of builds.

But putting attention to this game once again means the devs have to spend money for a shot in the dark, there's nearly no playerbase now at this point cause the replayability just doesn't exist.

So - the best way to keep this game alive is to make it open for modding. Oh well, a man can dream