Friend of Trolls save file

Proceed forward and save the final troll for the achievement to pop.

Directory: C:\Program Files (x86)\Steam\userdata\<user-steam-id>\20920\remote

If simply copy pasting doesn't work, first launch the game offline and make a new save game during the prologue. Then, rename the downloaded save file to the previous one and replace the files in the "remote" folder. Completing the quest and going online should trigger the achievement.