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