I played Disco Elysium by myself, and I died while looking at a Communist graffitti in a stairwell. I though that would be a great time to die, but maybe I could get my remaining (lib) friends to continue playing cooperatively? Have you tried to do this? (Kim is always a [lib] co-op dude too...)
Well, it's a single player adventure game, so co-operative play would just be collectively deciding/voting on what decisions to take or taking turns. IDK if that counts as multiplayer.
On a tangential note: I think that a Everyone is John or Bluebeard's Bride style TTRPG where players collectively control a single character would be fun way to adapt Disco Elysium as a TTRPG.
I always wanted to do an everyone is john game where everyone is a different kind of dnd wizard with wildly different goals and alignment.