For Darkest Dungeon II players desperate to 100% the game now instead of waiting 1 year, all you need to do is set your system s PC clock to May 8th 2024.
Changing the date and time

Then, turn Set the time automatically off.
Then, change the date to the 8th May 2024.Save, relaunch the game and then the achievement will pop. To reset your PC s time back to normal, set the Set the time automatically option to on.