Tale of Immortal Review (𝕄𝕣.𝕊𝕖𝕧𝕖𝕟)
The game itself is amazing, if you're wondering why the reviews are "mostly negative" here's why.
This can basically be summarized by bad Early Access practices but here's the full list of things that I know of.
1: Not fully testing updates before releasing them or having a separate "unstable" build. This at least once led to the game being completely broken unless you went into the game files and deleted a folder which the devs should have.
2: Putting in new content on all language versions without translating them first. I've been basically playing the game while trying to avoid certain new additions to it because I don't read Chinese and don't want to complete those missions and not be able to understand what I just did. This is easier said than done.
3: The whole Korean localization debacle. My understanding of this is that basically what they did was to decide that they were going to outsource the Korean translations to a local Korean company. The problem is that they didn't do this through Steam, and now Korean players have to buy the game AGAIN through that Korean company if they want to play it in their language.
All these problems are reflective of what is likely really shitty top level management since they're easy problems to fix.
Solution 1: Have an unstable version where updates are released first before being pushed over to the main branch. It's basically like letting Steam do the QA testing for you and for free.
Solution 2: Create new branches for each supported Language. Doing this will allow them to push through development of the Chinese version and back burner the other versions until they have time to fool with them.
Solution 3: Refund the Korean players on Steam and direct them to the Korean publishing site. Assuming they're going to have DLC after the game is completed, make the first major DLC free in Korean, and that will roughly compensate them for their troubles. It's not a massive market anyway so it's not like they'll be missing out on a lot of money, and it would be better to retain a good reputation there.