I use Manjaro, so there were a few libs needed before the game would start(the inlcuded scummvm version seems fussy)

Also had to symlink a few of the libs due to version differences.

I needed:

fluidsynth, but the game looks for libfluidsynth.so.1, i had fluidsynth.so.2.3.0

from command line:
cd /usr/lib

then:

sudo ln -s libfluidsynth.so.2.3.0 libfluidsynth.so.1

make sure you install fluidsynth if it's not already installed.

The game looks for libsndio.so.6.1, I had 7.0 so same thing here

Also needs libcurl-gnutls.so.4 and libSDL2_net-2.0.so.0

these can just be installed via your package manager if needed.

if you want to find out what's missing / the game can't find, use the old ldd trick on the included scummvm_x86_64 which is in "/home/"username"/GOG Games/Blade Runner/game/scummvm/" by default or wherever you installed the game.

Thank you very much! Got it running. Damn those cutting edge packages! ;)