I read in this thread: https://www.gog.com/forum/primordia/primordia_is_available_for_mac_and_linux_again

...that there's a new Linux version of Primordia. Unfortunately, I wasn't able to install it. I downloaded the shell script from GOG, but when I run it it gives me an error

===
Verifying archive integrity... All good.
Uncompressing Primordia (GOG.com) 100%
Collecting info for this system...
Operating system: linux
CPU Arch: x86_64
trying mojosetup in bin/linux/x86_64
USING en_US



PANIC
Initial setup failed. Cannot continue.


Error: Couldn't run mojosetup
===

I'm running Ubuntu 20.04.3 LTS with NVIDIA proprietary drivers for the graphics card.
I looked up mojosetup in case its a package I need to install, but its not in a repo and all I could find was instructions for building it from source on github.

Before I go that far, I'd like to make sure there isn't an easier fix I'm missing.

Thanks.

I'd recommend unpacking the game files from the installer and running the game using a standalone ags engine, but it seems the ags package is not available for Ubuntu (I use Fedora which has the latest version of ags in the repositories).

Even better than the standalone AGS engine: ScummVM has support for recent AGS games, including Primordia.