First of all, thanks for your review. It's AMAZING, such things make me feel good. Thanks.
Going on by your list.
1. I was unaware of the bug with Essence of Atal'ai. I will try to fix it.
2. I think I know, why Zeroth is causing problems. It will be fixed.
3. I know that there are some items in the game that award more bonuses than others but have lesser price. But I know that these items are only dropped by mobs and are not gamebreaking. The items in the shop on the other hand, I know they are all just as they have to be. Anyways I will take a look on some of those items with weird prices/stats.
4. A hint will be added for the movement speed bonus. (Btw, huge movement speed could result in some bugs i found.)
5. Yes, the Queen's Tiara along with some other few items cannot be sold. It's intentional.
6. Usually there is also a ranged mob behind the barricades, so he will shoot at you too

7. The ending cinematic is a mess. It will be completely remade at some point. Sorry for that bug.
8. That's a complicated one. Well, the idea of the boss is to give you that feeling that if you dont kill him (fast), you will be overwhelmed. The idea of a limit is good, cause I know lag scenarios are possible. I will look into that.
Moving on to suggestions.
1. I agree with you on that one, except this: More items?

. If this map is full with something excpet trees, it's the items man. I always add new, but the variety is always there. I also recieved the suggestion for dungeons multiple times. I can tell you only this: Soon.

2. Sounds fair enough. Might aswell do it next version.

3. This idea is great, but I am far from capable to do this. I might ask someone to do this, but don't expect it any time soon.

4. I like that idea, but I fear it's impossible. Atleast for me

5. I would love to add more riddles. Stay tuned with the changelog to see if new are added.
You did indeed provide nice info and I am thankfull.
About the things with the lights.... never noted it. Proubably a glitch. Nothing intended there.