I got An Untitled Story working on my Steam Deck! The trick is that you have to install windows
@terry @maddy This page mentions that installing Windows is not necessary: https://www.thegamebinc.com/blog/launching-the-an-untitled-story-restoration-project
It says that MIDI isn't supported "on non-Windows platforms", but that's absolutely not true - I even had it working under Wine with my own ancient TGF games, it just needs to be configured correctly in ALSA. I may take a look at that later.
@terry Not with this game (yet!), but yes, I had MIDI working under Wine, which was actually just a matter of having alsaseq working. It's likely that you'll have to install some stuff on Deck to make it work there, but in the past SteamOS devs were responsive to my requests to add things that help games work well, so getting it to work out-of-box is not outside the realm of possibility ;)
@terry Looks like the issue is not about MIDI support in general like that article makes it seem, but with the API GameMaker used (DirectMusic) having a very incomplete implementation in Wine. May still be possible to get it to work via native Windows dlls.
Other than that, it needs timidity and a soundfont to be installed on Deck and running in ALSA sequencer mode. I just tested MIDI in a TGF game and it works on Deck after doing that. So it's just DirectMusic that still needs to be tackled.
@dos oh, did you actually get it working? I tried a few different wine versions and none of them had music 😔 you should put something online for the next person who searches, this would have saved me a bunch of work!