Here is the full list of all 50 Last Will achievements.
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.
Reject the will and your inheritance.
Completed all four episodes within the time limit.
Complete the transfer chamber.
Complete the fourth episode with over 30 minutes to spare.
Complete a full run of episode 4 within the time limit.
Become the professor of the Gladsbury Estate.
Complete the laboratory.
Complete the gallery.
Unlock a hundred doors.
Complete the observatory.
Complete the south garret.
Complete the conservatory.
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 greenhouse.
Complete the isolated study.
Complete the pantry.
Complete the master bedroom.
Complete the first episode with over 30 minutes to spare.
Complete the second episode with over 30 minutes to spare.
Complete the darkroom.
Open 50 doors.
Complete the bunker room.
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 chapel.
Complete the storage cellars.
Complete the old tower.
Complete the wine cellar.
Complete the archives.
Complete the dining hall.
Complete the office.
Complete the guest wing.
Complete a full run of episode 1 within the time limit.
Complete the passageway.
Complete the library.
Complete the game room.
Complete the study parlor.
Watch the prologue.
Listen to your first audio recording.
Complete the chess room.
Open your first door in the mansion.
Complete the entrance hall.
Enter the mansion with a full team of four players.
Complete any act with a full team in under 40 minutes.
Witness another player complete the transfer.