WB Games has announced that 2014 Action Adventure game, Middle-Earth: Shadow of Mordor is going to be strip of their online features on the 31st of December.
They announced the changes on their Steam page where Online components such as the Nemesis Forge (a way to transfer your top nemesis or allies to their sequel, Shadow of War), Vendetta missions, Leaderboards, and WBPlay network are going to be turn off by the end of December. This will effect all versions of the game.
This shut-down will effect those achievement hunters as well, due to some of the game’s achievement relates to the completion of vendetta missions. So if you play it in 2021, you cannot complete it to 100%.
With that said, if you have a copy of the game now, get on doing those vendetta missions, ASAP.
Source: Steam Page