Sometimes, we all just need a bit of positivity ;)
I played for a while longer yesterday and still enjoyed the time. I agree with the commenter mentioning the very easy gameplay, a bit more of a difficulty curve until you feel like you are a force to be reconed with might be a good route. As in: It's easy to idle on a stage you already leveled yourself up for and equipped stuff, but once you step into another level, things get a bit harder again, giving more of a challenge. One of the main reasons I like idles is the progression of feeling weak to hitting a wall and overcoming it, then coasting along for a while enjoying the newfound power until the next challenge comes up.
I also found some other bug: once you toggle all the filter options on, no matter if you toggle them off, they stay on. Or maybe, I really did not loot a single thing for two hours afterwards - which feels like that shouldn't be true ;) The first time I was at the smith and wanted to dust my superfluous equipment also did not work on first try, no matter which filter I used.
The trader is as frustratingly fun as I remember those reroll-traders from Diablo :D It's good to have another way to use the tier resources (and became my only way to get loot thanks to the filter bug).
When I keep this open in a browser window, the game seems to run out of enemies to fight. I came back to the tab after working on a project and my character stood in an empty room. Had to leave it to get any meaningful amount of enemies back
And I think saving doesn't work yet? Which I only saw this morning, which doesn't make this a great start into the day ;) (granted, I only saw the warning after I reloaded it. Maybe put that on the pause menu, too?) I seemed to have kept the things in my inventory, but levels reset and the tutorial greeted me again (which I liked, btw, and I've been playing since the early 90s, too. It's quite short and gives a quick overlook, then is done in a matter of moments. I think you handled that well, even though I'm not too much of a fan of the "click here" tutorial myself.) Loading a save on the web version also seemed to have kept the "dust everything" filters I toggled at an earlier point and can't go back on now.
I downloaded the game today instead and please, add an options menu for screen resolution. I accidentially opened it on my vertical monitor and it's now stuck that way ;D
Hope, you are getting plenty of feedback and playtesters to work with!