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