Awesome game! Added to wish list, have already played something around 10hrs on itch.io. Thanks for free demo, will buy it on full release!
But I have 2 ideas or things, that in my opinion could make game even more awesome :)
First is remove skills selection via keyboard. Lots of times I was clicking on some ability while still keeping keyboard buttons pressed. And lots of times I have selected wrong abilities. Outraging thing, especially on levels > 11 when you have accidentally selected a useless skill for the current run.
Second is "relax" mode for people who don't like to struggle. I want to try different fun builds, but looks like not all of them are able to survive. And I don't understand how to survive circles of enemies in the last 1-1.5 min. It's just 1 checkbox with few settings for you and tons of fun for thousands of people. Sometimes I want to have a challenge. Sometimes I want to have fun and just kill a few thousands of enemies with my cool crossbow.