So I haven't tried messing around with custom Proton builds before, how does this work? I extract the custom version to the directory, then does it show up in the list of versions to force a game to use? Is that how you can only use it with Planet Zoo?

Also, is it possible/likely that the improvements in this version will eventually make their way into Valve's main branch, so that I could potentially play PZ using vanilla Proton further down the line? Thanks.

I've tried Proton GE a few times.

Yeah you have to extract it in the directory I've mentioned above and you can choose this Proton version on Steam, like you'll do it with the other Proton versions. It's recommended just to use this version for Planet Zoo.

You might play it with vanilla Proton sooner or later but for now it is working like a charm.

Well, with Planet Zoo going on sale this weekend a week after my birthday I thought, "What better time to try it out again?" So I bought the deluxe pack with all DLC, downloaded the custom Proton version, updated my graphics drivers after it kept crashing 10 seconds into the first tutorial, and it's working now! I'm still working my way through the first level, but I'm really enjoying it so far. :) The beautiful animal animations were what hooked me in the previews, and they're even better up close and in-person. Thanks a lot for first bringing the custom Proton build to my attention. :)

I'll give a few more hours, then submit a ProtonDB report (I've already had it crash Cinnamon on me from Alt-Tabbing, but at least Cinnamon was able to restart).

Should probably reply to this, it looks like the latest beta release of Proton 5 also works to run Planet Zoo. I'm assuming it incorporates the work from this custom version, probably?

You were right, it's fixed in Proton 5.0-8. Jurassic World Evolution is also working now!

Last edited by MrNilsson on 6 June 2020 at 10:31 am UTC