UnknownUnknown
Game is only "playable" if you launch it using Proton GE with no launch options, keep it on your main display, and never resize the window.
Resizing window freezes whatever frame you're on, and you have to close game to fix this. Moving to second monitor seems to have the same behaviour.
Full screen=black screen. Cannot close game properly when this happens, and have to use Steam to stop the process.
Quick save doesn't work, but manually saving does.
Game window is named "????" instead of actual title.
On first startup I had the same error message as the ProtonDB review below this one, and when inputting the launch options of the review below it just had a different error message.
I don't know what I actually did to get it working, so I can't even promise it will be playable on your setup, nor do I think the playable experience is worth it.
UnknownWith default settings, the game throws the error: "Failed to call CDemuxSource::OpenStream( stream ). : [0x80004001] Error: 0x80004001". The only way to fix it is to add the launch options "PROTON_LOG=1" and "LANG=ja_JP.UTF-8". However, the game then "can't convert ANSI strings to UNICODE" and asks to verify file integrity. Changing to other locales do not work.
Unknown
