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