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