You need to install the older version of libssl - in this case 1.0.0 (most distros ship with both 1.1.0 and 1.0.0). Also note that installing one might ask you to remove the other as normally they don't coexist system-wide.

Alternatively you could place that library in the game's folder and run the game using the LD_LIBRARY_PATH environment variable. This way you can run the game without modifying your system, personally I prefer it.

Last edited by Avehicle7887 on 12 April 2020 at 11:35 pm UTC

Thanks, solved by installing the openssl-1.0 package.

I solved this on Fedora by dumping a copy of libssl.so.1.0.0 and libcrypto.so.1.0.0 to X4_Foundations/game/lib where the game picks it up. This way I don't screw with my system lib by downgrading openssl. This works for most problems like this:

 beko  …  linux  X4_Foundations  game  ldd X4 
./X4: /lib64/liblber-2.4.so.2: no version information available (required by ./X4)
./X4: /lib64/libldap_r-2.4.so.2: no version information available (required by ./X4)
./X4: lib/libssl.so.1.0.0: no version information available (required by ./X4)
./X4: lib/libssl.so.1.0.0: no version information available (required by ./X4)
./X4: lib/libcrypto.so.1.0.0: no version information available (required by ./X4)
linux-vdso.so.1 (0x00007ffed0b43000)
libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007fea9d4d8000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007fea9d4b6000)
[...]

Doesn't matter from where you copy that lib as long as it matches the architecture and libc. It can be copied from Steam or any other application shipping this deprecated lib. F5 for example.