Does this work on steam deck?

Went to get a copy but I can't find where to actually "buy", app not browser if it makes a difference. Just seems like a weird bug unless you are phasing it off steam or something? D:

http://steamproxy.net/sharedfiles/filedetails/?id=972643494

I found a very unpleasant bug I think: Before a Boss Fight, if there is a crumble sound of some sort, it repeat itself until it change to another music sound. Any kind of help please?

There appears to be a Linux/SteamOS version available, but no system requirements listed. Is there anything special the game requires to be installed (Java, Mono, etc)? Secondly, gamepad support - it says partial. What does this mean? Can we do a one-time config of gamepad mappings, or do we require a mouse or keyboard for anything (launcher, menus, inventory, etc)?...