Here is the full list of all 50 Last Will achievements.
Complete a full run of the Chaos Gauntlet within the time limit.
Complete the fourth episode with over 30 minutes to spare.
Completed all four episodes within the time limit.
Complete a full run of episode 4 within the time limit.
Witness another player complete the transfer.
Complete a full run of episode 3 within the time limit.
Complete the third episode with over 30 minutes to spare.
Complete a full run of episode 2 within the time limit.
Complete the second episode with over 30 minutes to spare.
Complete the wine cellar.
Complete the study parlor.
Complete a full run of episode 1 within the time limit.
Complete the first episode with over 30 minutes to spare.
Deliberately take out the entire mansion, and whatever may be lost with it.
Complete the workshop.
Complete the bunker room.
Complete the dining hall.
Complete the chess room.
Complete the guest wing.
Unlock a hundred doors.
Reject the will and your inheritance.
Complete the transfer chamber.
Become the professor of the Gladsbury Estate.
Open 50 doors.
Complete the laboratory.
Complete the observatory.
Complete the gallery.
Complete the south garret.
Complete the isolated study.
Complete the greenhouse.
Complete the pantry.
Complete the conservatory.
Complete the master bedroom.
Ensure no drawer, panel or door is left open in a successful multiplayer game.
Complete the storage cellars.
Complete the darkroom.
Complete the archives.
Complete the old tower.
Complete the chapel.
Listen to your first audio recording.
Complete the library.
Complete the game room.
Complete the passageway.
Complete the office.
Open your first door in the mansion.
Complete the entrance hall.
Watch the prologue.
Enter the mansion with a full team of four players.
Complete any act with a full team in under 40 minutes.
Complete the Chaos Gauntlet with over 30 minutes to spare.