It's the weird cases where #NixOS shines. I've been a bit sick lately and wanted to replay an old game (Baldur's Gate II). It depends on openssl 1.0.x . Pretty much no modern distro ships that (for good reasons).
In other distros there's a few paths:
* Compile the lib yourself, override LD_LIBRARY_PATH to the built dir
* Build/use a binary package, hope for the best and pollute your system with super old shared crypto library
NixOS let me builld + inject it for Lutris/game itself.