Thank you!
We currently do not have a discord server / community for the game. With the future Steam demo that we are planning to release we might consider it. It really does depend on the interest for the game and if there is a point in making one, so for now we are using Itch with the posts.
For the UI and the buttons not appearing when clicked, could you specify which ones. Are some of them buggy, or simply not triggered when hovered? It could perhaps be too small of a collider on them hence hard to click. And for the different tabs/menus, they all should work as when clicked on it should be prioritized and overlaid on top of any other, unless you mean something else and it bugged?
With the items, in this version they are very simple. On equip they apply specified stats to each of your monsters automatically - always in effect. And yes, as you upgrade items the effects both positive and negative get stronger. Could you also elaborate on what you mean with toggling more gold exp and damage. Is it about having more items available that provide these stat boosts?
Really appreciate you checking it out and would love to hear more thoughts you have on the game. Feel free to tell us what you'd like to see in the game as well.