No sale, no update for 5 months. Is the game dead?

Thread for leaving your feedback (which I greatly appreciate).

So far the banner at the top of the screen only shows bottom half. Card that slides out on top left of the screen only sliding out partial. No clue what it says. Tried 1080p to 4k. No difference.

I seem to be unable to complete a wave past 28 or earn more exp for the "progression" past level 92. Is this the game end? Feels rather anticlimactic if so.

I've reached wave 20 (the lone big dude) four times. The best I've done is gotten him down to about half health before he killed me. The other 3 times I managed to get him down to about 3/4 health. So, I'm miles off killing him. Is there something else I should be trying? Right now all I can do is play to level 20, lose, get 1 level to unlock stuff. It feels very grindy and not fun....