missing libgtk-x11-2.0.so.0 in 18.04

id got "X3: Reunion" from gog. But if I want to start it, I get the message

./X3R_config: error while loading shared libraries: libgtk-x11-2.0.so.0: cannot open shared object file: No such file or directory

I tried to sudo apt install libgtk2.0-0 as recommended here but it says libgtk2.0-0 is already the newest version (2.24.32-1ubuntu1).
I didn't find anything in the Ubuntu Package Search either.

Any suggestions, how I can get the library or play the game without it?

P.S. I'm working with Ubuntu 18.04.1 LTS

2 Answers

sudo apt-get install --reinstall libgtk2.0-0

solve a similar problem for me

Looks like the game is 32bit. Installing libgtk2.0-0:i386 (along with some others) solved this problem.