Great game! The aesthetic is nice and currently I didn't feel like I was waiting or grinding for upgrades except the first 3 minutes until the basement is unlocked. However, it does take a really long time for parties to form and get to the floors. Especially past floor 6.
The Lich seems to be broken, it only raises a [fleshbag] once, ever. I tried destroying the rooms and replacing them, but swapping from kobolds to goblins gave them one skeleton each then never again. I refreshed the page and that gave the goblins 1 more activation of the Lich.
At this stage of the game that's not a breaking issue as the Lich itself is a tough enemy to overcome by itself, but with better equipment and better adventurers it'll be an issue.
Laser grid trap plus giant spiders currently is a terrible combo (from an adventurers perspective). Almost guaranties failed saving throws plus high enough damage that most high level parties can hardly make it past the next room. Maybe with higher level adventurers in the future it won't be so devastating. But as it stands its very OP.