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