https://bugs.winehq.org/show_bug.cgi?id=43464
--- Comment #24 from Brendan McGrath brendan@redmandi.com --- (In reply to jens from comment #23)
Thanks for the confirmation. Cool! So ED wont be running out of the box from a Steam installation, but requires either modifying the proton script (which is not per game but would effect all proton games in a steam installation) or requires the MachineGuid workaround in the ED prefix?
Yes - there are some other steps required too (like installing .NET). You can get ED running on Proton right now. The best instructions for doing so can be found here: https://github.com/ValveSoftware/Proton/issues/150