note: the game seems to work fine on proton right now, but if it doesnt work for you or it doesnt run well, then you can try this

if you're lazy and just want to get it working right now, then you can simply extract the contents of this zip file into the same folder where psychopatrolr.pck is:
https://gist.github.com/wgetJane/2be1b20bc50c1123037eada8cbc17b9d/raw/ppr_linux.zip (15.6 MB)

however, if you think i'm probably evil and twisted and don't trust random binaries from me, then here's how you can get it working on your own

first, you need the executable, so download the Godot 3.6 export templates (current version that Psycho Patrol R uses) from here:
https://github.com/godotengine/godot-builds/releases/download/3.6-stable/Godot_v3.6-stable_export_templates.tpz

extract the linux_x11_64_release executable file from the archive

then rename it to psychopatrolr (or psychopatrolr.x86_64 if you wanna be fancy)

the executable file needs to be in the same folder where psychopatrolr.pck is, every file we're making or getting needs be in the same folder

now we just need the dependencies Qodot and Godotsteam

get libqodot.so from here:
https://github.com/QodotPlugin/libqodot/releases/tag/v1.7.0

get libmap.so from here:
https://github.com/QodotPlugin/libmap/releases/tag/v1.7.0

get libgodotsteam.so + libsteam_api.so from here:
https://github.com/GodotSteam/GodotSteam/releases/tag/v3.28

you should also make a file named steam_appid.txt with 1907590 written inside of it
(that number is Psycho Patrol R's app id as you can see from this url: https://store.steampowered.com/app/1907590/)

everything should be working by now, but there's a few extra things you can do

if you want to launch the linux version directly through your steam library, you can set the game's launch options on steam to something like this:

if you've already played the game through proton and want to copy your save folder, then you can find it at probably somewhere like this:

then you can put it in this path:

anyway this should keep working even after ville releases more patches and updates to the game
(unless godot 3 gets another big update that breaks stuff which is probably unlikely)

tell me if you find any weird issues (i haven't run into any so far)

this game is in early access right now and will naturally be very buggy

🚨 DO NOT REPORT BUGS TO VILLE IF YOU'RE NOT SURE THAT IT'S NOT LINUX-RELATED 🚨

gameplay-related bugs are typically safe to report, but visual glitches (that aren't just ui bugs) could easily be caused by linux graphics drivers or whatever