I found a library on my system and I don't think it is used anywhere. So for tidyness' sake I would delete it, but I want to make sure that I don't break anything.Specifically it's about libgme0. I am on Linux Mint 18.So far I've tried ldd /bin/* | grep libgme0ldd /sbin/* | grep libgme0ldd /usr/bin/* | grep libgme0ldd /usr/sbin/* | grep libgme0and got no results. Is this enough proof that this library is unused and save to delete? 
How to check if its safe to delete a library?
linux mint;libraries;delete
You should probably let the package manager of your distribution decide if it's safe to remove it or not.Maybe try to remove it with apt-get remove libgme0 and see if it wants to remove other packages?