Well, neither of them is terribly good. SU is basically a Patreon cash cow, and Queen's Brothel is more or less in the proof-of-concept stage.
Moddable games.
There are many Japanese games that can be made to work, some with more difficulty than others. There's things that are translated, things that are
gibberish machine translated, and those with full-on moon runes. Aku-Mu was probably the last more or less translated one I played that left a slightly positive impression.
In my experience, Japanese games are very hit or miss. They are definitely 'out of the box' from a more Western POV, but that merely means that they're either genius or bizarre. And the bizarre far outnumber the genius.