I'll try to keep it short and only mention the issues with this game that I can remember after not playing it for a week or two:
- first time playing the game ended in it freaking out and giving me the very first quest a dozen times, finishing the quest would not close the one dozen duplicates of the quest. i had to restart the game.... this was literally the first 2 minutes of the game
- the NPCs in general are useless, they give you nothing interesting, don't do anything, all they do is chill at your base and be pointless
- speaking of your base, god forbid you try and have all the NPCs at one central location. be prepared for the game trying to load them all in every single time you walk past it. the game consistently bricks for a minute when I walk a little bit away from the base and then return. it's awful
- bosses are often a visual clusterfuck, too much stuff going on at once, it's very hard to tell what is even going on. the bosses also drop blueprints for equipment that get consumed when you craft them, which means you have to grind them a lot to get all the equipment for more than one person. basically, multiplayer is less fun because you have to split all resources and the blueprints sometimes have really low chances to drop. some blueprints i have never even laid my eyes on because they just won't drop after dozens of attempts
- inventory management sucks, stacks of items cap at 99 but you can't quick-transfer stacks or anything, if you have one stack with 94 items and one with 63, you have to manually pick up 5 items from the 63 stack to make the stack with 94 have 99. this is annoying and i have no clue why anyone would ever design it that way. speaking of weird inventory stuff, you will constantly run into the problem that you can still interact with objects like other chests while you are going through the items on a chest. so you will try to pick up an item from one chest and by trying to do so, you will accidentally open another chest.... how do you mess this up?
- dungeons etc reset once you leave them, so this makes it frustrating in case you die, because you will drop items on death and can't get them back because you spawn outside the dungeon. more than once was i killed by a projectile that a boss spawned after it died, killing me and making me drop most of my stuff and having to start the whole thing over
- you get tons of absolutely useless key items. most of them don't seem to do anything except take up space
- most quests are boring "collect x amount of this item" quests and they give you nothing of note anyways. as mentioned, NPCs are useless and it's a waste of time to bother doing any quests for them
- there's no story or lore of note, you don't have any clear idea of why you exist, wtf you are doing and why. a wizard tells you to do stuff for some reason and you do it because it's a game i guess. this also means that the game ends suddenly at some arbitrary point because there's nothing you aim for anyways. me and my friend weren't even aware that we defeated the last available boss because none of it is communicated anyways. go place, kill boss because why not idk. Are you having fun?
If I booted the game up again I would probably remember even more frustrating things. I didn't even mention yet that I can't get all achievements because the last one is impossible to get from what I can tell.
Save your money, don't buy this. It's a waste of your time to play this game. It's a frustrating, buggy, unsatisfying game that fails even at the little things it attempts to do. Nothing in this game is really worth experiencing, except for maybe parts of the soundtrack that I liked. But really, the only reason I played this game for more than 10 minutes is because me and my friend had nothing better to do at the time.