Is there a way to tell beforehand what something is/does?

When an NPC is offering to sell me gear, I have no idea if I'm buying something something unsuitable for my build.

Same for spells, where all I have is the spell name to go off of for what it will do.

For the most part, skills can be identified by name alone but there's still no detailed information on them after choosing one.

Am I just missing something or are there plans/way to show more?

Also, on a side note,

1) Aereal Dash should be Aerial Dash right?

2) Are potions meant to show up as separate inventory items, despite them stacking as a consumable?

Other random observations:

1) Found some sort of funky crack in the wall that kept spawning enemies every few seconds? Once I get Magic Meteor, maybe it can AOE them down? Not sure if it's intended. (Edit - Never mind, this seems to be intended behaviour for a folder containing lots of files)

2) Strength doesn't denote that it's required to equip gear (or I'm getting incredibly unlucky for defensive mage drops). This, unfortunately, puts a heavy benefit towards melee classes over magic/bow classes as they'll already be pumping Str.

3) Nothing on the Spells page to denote how many Adventure Points you have. Need to go over to the Skills page to tell (and even then, one has to piece together that what's being recorded there is AP)

4) Are the random holes in the ground that lead to what is essentially the outside of the room intended? Only encountered them a few times and learned my lesson to not jump in them. Thankfully saving and quitting will put you back at the door.

5) +'s as a item prefix, rather than a suffix? Intended?

6) Enemies immediately respawning when coming back from a subroom seems a bit wonky. I've hit a few rooms where I can't full clear them due to needing double jump. If I try to explore the subrooms within them, the enemies will come back and I have to be careful again. Makes it riskier to explore than intended/desired perhaps?

7) Leaf book -> Leaf Book, Perforing Spear -> Perforating Spear?

8) Hyphens missing from some things as well, like Browntinted -> Brown-tinted.

9) Defence seems to not matter that much? I decided to go from 1 STR to 16 STR so I could wear some better gear. This pushed me from 15 defence to 53 defence, except I only went from taking 45 damage to 35 damage.

Hey Bastille! Thank you so much for all this amazing feedback!

There are some known issues among your list, but this kind of feedback is priceless. We'll take note of all of your points and see how  we can fix the most "game wreaking" ones first, and then we'll start the balancing issues.

Thank you again!

You're welcome.

Other observations:

1) Being able to sort and/or discard items would be nice. Without reliable access to the conversion NPCs, the inventory can get cluttered quite quickly.

2) Magic Shield seemed to do nothing when I used it? The description made it sound like it would hurt enemies if I hit them while using it. Instead they took no damage, I still took my normal amount of damage, and my caster promptly bit it.

3) What exactly is stamina?

4) Why does Agi list its benefits as "Increase Attack Speed" and then "Attack Faster"

5) Items list themselves as having requiremets -> requirements

6) The two sets of three wooden platforms aren't solid, requiring you to have triple jump to get past them

Image reference

7) Just to check, is it intended behaviour to be able to bypass stat requirements by using items that boost your stats? Case in point: Stone Destruction Sword requires 72 STR. I have 70 STR but equip a sword that gives me 5 STR and then I can equip the Stone Destruction Sword, which gives me 10 STR so I'm still above the necessary STR requirement.

8) Is there a way to get rid of books at the moment? The level 15 mass item converters don't let you do it

9) Is there a way to buy potions and rope? Having to rely on drops can leave you empty and having to rely on natural regen, slowing things down.

10) Is it intentional to have cursed doors count as "completed" initially? I had a totem behind a cursed door, which was tucked 5 directories deep and all the folders ahead of it read as being clear.

11) Please don't put spikes in boss rooms if you're going to zoom out so far that you can see both characters from the start. If I didn't rely on my shields, I'd have been dead before even reaching the boss because I can't really see what I'm doing.

12) Shield boss was partially stuck in the floor so I just stabbed him to death without any meaningful fight. 

13) As noted in another thread, killing a boss causes a crash. Same error as was in that thread.

14) Once all skills are mastered, the AP meter goes away so you definitely have no way of telling how many you have for the sake of buying spells.

For the room design with two perpendicular beams of wood, the upper beam of wood doesn't seem to work properly. I couldn't stand on it when I tried to jump from the side. When I did somehow manage to do so, I wound up getting stuck instead.

Stuck

Crash on another of the bosses, this time when attacking the mini versions of itself it spits out

___________________________________________
############################################################################################
FATAL ERROR in
action number 1
of  Step Event0
for object obj_attack:

Variable <unknown_object>.element(100042, -2147483648) not set before reading it.
at gml_Script_deal_damage
############################################################################################
--------------------------------------------------------------------------------------------
stack frame is
gml_Script_deal_damage (line -1)
gml_Object_obj_attack_Step_0

I want to add some feedback in regards to some of these points brought up.

1) Do you think it is fair to have totems behind cursed doors? that basically forces people to have to get to that talent to progress, which in the game's current state I guess isn't exactly difficult. But as I feel the entire talent system needs re-working I don't feel bosses should be limited by a talent selection. Cursed doors should offer something other than progression.

2) As Bastille mentioned, if you close the unintended gaps, make sure that enemies can't spawn outside of the map. In some of the bookcase/library style rooms, I got upset during my initial playthrough because I couldn't kill an enemy on top of the level unless I switched to a book for magic and sat there for 5 minutes hitting it and waiting for my mana to regen (as I was a melee character). So even in rooms where there are NO gaps enemies still spawn outside of the map limits.

3) In a LOT of other games, if you raise your stat via an item and then you equip another item that brings you over the stat requirement (like in Diablo 3) you can still wield the item and I think this shouldn't be fixed. Think of it this way: if I was wearing a hat, for example, that gave me 10 strength, when I equip an item that gives me strength, my stats increase. When I remove my hat the weapon is still giving me power since I haven't unequipped it. I don't really think it's even an issue.

4) I don't exactly like the current rift-style setup as it could spawn enemies for hours. Even if you do intent to make levels generate to be larger and accommodate files, could you imagine going into system32 and exploring that level to find 12,000 files? Imagine if you have 10 left. Are you going to search for them all? How big is this level going to be exactly? Maybe this is extreme, but enemies need to get condensed somehow if there are a lot of the same file. It doesn't make sense to make someone kill 12,000 enemies. It's pure monotony.