I am writing this as I play through.
Note: We run Linux, so this is being played using Wine.
The first thing I noticed was the requirement for a name, and that it appears to require being at least 3 characters long. I will often just use a single letter when testing. The button to continue is gray, but doesn't look like your faded out disabled buttons. When active it also doesn't change all that much. When you mouse over it it changes the cursor to a finger as if you should be able to interact and when you click it shows an animation, but nothing else happens. If you are going to require at least 3 characters, then you should mention that somewhere. At a minimum, there should be something explaining that requirement when pressing the button with fewer, so the player knows why nothing happened. I expect most people will be able to figure it out, but there will always be those who don't. If there isn't a technical reason, then why not allow a single character name? Informing the payer of the limit is the thing that matters here, and allowing only 1 character names is just personal preference.
I'm assuming this is for some sort of online connected system such as a leaderboard. I'm a big fan of single player games not needing any kind of internet connection, including not trying to connect at all, so being able to turn off any connected services would be nice. I see in a past devlog that you do mention a bug about not being able to run the game without an internet connection. I would very much appreciate if you list any connected services your game uses on the game page, and include an option to disable them from the settings. Clicking on the Ranking from the menu it loads fairly quickly, and there are only 2 entries, so I'm not sure if it is using a connected leaderboard or not.
The first area was a bit confusing. I was not able to fire the bow or do much of anything, other than the roll. I found a shop, but had no gold. In the end all I could do was go through the portal. Even if there is nothing to shoot, it would be nice if your attacks worked so new players can experiment and see how things work. More importantly, so new players don't spend too much time trying things to see how to play, while little is happening.
During play I saw that there were other paths than archery, but only having a bow, and several levels in the archery skill, it made sense to continue down that path. I eventually got a sword, but the bow was much safer to use at that point. From my experimenting with the sword I got hit a couple times by enemies that poisoned me (or is it "decay"?), and took out a significant amount of my health. I cleared the first combat area and entered the portal. I was surrounded, and with my low HP, quickly died. I acknowledge that having been using the bow I wasn't really using the roll much, and it may have helped with the closer combat and being surrounded.
I was thinking that it would be nice to be able to pick your starting class. I had also noticed that when being offered a choice between different equipment, I did not get any money for the one discarded. Upon death I saw that these were "Legacy" upgrades you could purchase after death. I had exactly 50 gold and was able to get both.
One of the upgrades, Eternal Growth, says "Increases 10% Exp Gained by Monsters." Should this be "from Monsters"? I assume that you, the player, get a bonus to Exp gained from killing monsters, but some games do offer increased difficulty by leveling up the monsters, and this could be doing that.
I see now that the shop at the start is meant for after you reincarnate. The other statue is now also active allowing you to purchase the legacy upgrades. That is nice so that you can see what the shop offers and decide how to spend your gold between them. It would be nice to know a bit more about the items offered at the shop. Do they stay with you for each future run, or are they only for the current run?
It would be nice if there was a close button, or right click could close some menus, rather than needing to use Escape.
I got some statues that I could "Siphon". I saw little icons appear at the top left, but was not sure what they meant. The shield is obviously some form of defense boost, but what kind? It would be nice to see details on hover, at least a name.
The Cryomancer upgrade "Shattered" says "When Ice Staff basic attacks hit a Chilled target, they split and can chain 1 time". From what I see, my attacks split when hitting a non-chilled target, but do not for a chilled one.
I found that hitting boxes, skulls, and similar objects was not consistent. Sometimes I'd fire multiple shots at the same spot and only one would hit. Then I'd need to move, possibly several times, and try until it worked. In general, I was never quite sure where would work to hit them, and has to try different spots.
I'm not a fan of the forest zones, starting with level 2. The path is not very clear, nor where you can and cannot shoot past. The trees overhead limiting your vision are annoying, but can fit the wish to show that your character's vision would be limited by the trees in a dense forest. The inability to find your path due to the dark ground sometimes being walkable, and sometimes being able to shoot over it, but not always for either, is problematic.
Eventually I got some spawns on level 2 that were not completely surrounded and swarming me on start. My first I still wasn't prepared for the new enemies and did not get far. That got me enough to pick the bonus of enemies dropping healing orbs. Using those, with the archer, I was able to beat level 2. I found the red portal and went through. I assumed it would be a challenge level. Above the mini-map it says "Dark Path". Initially things seemed pretty similar to the previous. Then I went down a side path and found some normal looking enemies, but with a greyish circle around their feet that took less damage and much higher HP. They also exploded into ice shards on death. That was a significant jump in difficulty. I often had to pick at them all the way back to my starting location before they were finished off. I did manage to make it to the end of that path and found a blue portal.
I went down another path, and was doing OK until I got rushed by 4 Minotaurs while off to the side of the path and did not react to get back to the path in time. I had 629 Gold by the time I died.
I unlocked a number of Legacy upgrades. "Path of Shadows" has a typo "andand".
I was planning to be done after this. There was no option to return to the menu, so I continued with Reincarnate, and then picking a class to start. It shortly showed the place where I had died, then switched to the starting area, but all I could see was the UI & mini-map. The character and world was black. Pressing Escape brought up the pause menu just fine. I tried using the mini-map to get to the portal and pressing E. According to the mini-map I was there, but nothing happened. I tried constantly pressing E while moving around that area, but still did not manage to warp. Returning to the Main Menu and selecting Continue, worked fine.
Overall, I enjoyed the game. The forest area issues with not knowing where the path was is the biggest problem for me. There was a good amount of variety in upgrades with items, leveling up, and Legacy. It did feel like your best option was to stay with the leveling up a single perk path based on your starting class, but part of that comes from the fact that I only ever got a second weapon once, which was my first play. There could be a bit more overlap and incentive for multi-classing, though only if new weapons were more common.
I think that difficulty progression could use some work. The difficulty jumped a lot going to level 2. I can see that part of it may be to encourage the use of the Legacy tree, but I think it would be more enjoyable if you didn't complete a fairly easy first dungeon and then dumped in the middle of a dozen enemies all swarming you the moment you move. My last 2 plays I was lucky enough to spawn in a dead end with a narrow path out that allowed me to pull and deal with them in more manageable numbers. I'd suggest maybe having some additional dungeon levels before switching to the forest, and add some logic to make the spawn point limit how many enemies are in range to swarm the player. Maybe on later levels or higher difficulties it could be removed, but for starting out it would be nice.
Some info on available controls would be nice. I stumbles onto pressing C for viewing your character stats by accident. I don't recall seeing it mentioned anywhere. A list of all controls somewhere, even if just on the web page for now, would help.
While double checking that they were not listed in the Settings, I noticed that the Resolution is set to my monitor resolution, even if I am in Windowed mode at a smaller resolution.