Update: I managed to get the server running after some more hours of tinkering with it. It seems like it had something to do with the downloaded file. After several attempts I got an error message saying that the file is corrupted an can't be unpacked. So I looked at the extension of the downloaded ...

Thank you for your reply!

I tried installing the version from the link you provided multiple times, but it still states that the installed version is 0.14.23. I also wiped the /opt/factorio folder before reinstalling.
Is there anything I could have overlooked when wiping the installation folders?

Hey guys!

I just installed 0.15.9 headless on my server running debian 8. I followed othyns factorio headless guide on github and changed the url to the corresponding 0.15.9 download url. It took me about 2 hours to get the server up and running, but now I am stuck on loading a 0.15.9 savegame from ...