Well first off, Thanks you for taking the time to write such a long and detailed review. I appreciate it.
The story and idea is pretty bare right now since I'm trying to focus on adding areas and refining that content. I want to have more areas for story moments to take place in. I'll think about making the story sort of more religion focused, or at least having religious aspects. One thing I want in the story is for either good or evil to not be so black and white. Like not just the embodiment of good and evil but characters that are more mixed.
The Class balance is totally unbalanced, but I didn't have much time to test it out before releasing it either. Even while making the damage calculations I knew I'd need to go back and fix some things. I've already lowered the basic attack damage for almost every class since they just seemed too strong generally. The Cryomancer is supposed to be the weakest of the Diviners in terms of damage but yeah the skills could use some work in terms of variety or progression. I think in some cases I made some of the basic spells for the starting classes a bit strong, I'll look into making them feel more like a stepping stone into the real spells/skills.
The spells/skills are already structured so that once you fully learn a spell it unlocks a new stronger spell. I wanted to add a visual skill tree so you could see that but I couldn't find any plugin that worked the way I wanted. I might have to add an image showing the progression or something. But I agree, having a visual skill tree would be very helpful.
I can add a exclamation mark to quest important NPC's, though I don't know if there are that many. 'Quests' that Vic in the bar gives hints for aren't meant to be obvious or well known so stuff like that would still be unmarked but I should mark him. Followers should probably also be marked but I don't want it to be so obvious with an exclamation mark above them. I'll have to think about that.
The well quest I had to check because I forgot but you're supposed to stand on the water bubbles that blast water upwards. There should be a lightbulb icon over the bubbles that disappears when it forms the geyser and returns when it goes back to the bubbles. This is in the lowest level with all the lava by the way. So if that doesn't work then let me know, it used to at least.
I'll look into the no encounter/half encounter spells not working.
I'm also a fan of not having random encounters and instead encounters you can see. I do use encounters you can see in several areas but I think I should make it more consistent like dungeons and forest hideaways being where you can see the encounters but overworld type areas having random encounters. I'm not really sure what the percentage of people who like one over the other is. Maybe if I can't get the no/half encounter spells to work I'll just make it a toggle in the settings.
Thanks again for the suggestions and trying out the game, it gave me some things to think about, look into, and fix.