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.
Reject the will and your inheritance.
Deliberately take out the entire mansion, and whatever may be lost with it.
Complete the fourth episode with over 30 minutes to spare.
Witness another player complete the transfer.
Complete the greenhouse.
Complete the second episode with over 30 minutes to spare.
Complete the wine cellar.
Complete the archives.
Unlock a hundred doors.
Complete the first episode with over 30 minutes to spare.
Complete the study parlor.
Complete the game room.
Open 50 doors.
Complete the guest wing.
Watch the prologue.
Completed all four episodes within the time limit.
Complete the transfer chamber.
Complete a full run of episode 4 within the time limit.
Become the professor of the Gladsbury Estate.
Complete the laboratory.
Complete the south garret.
Complete the gallery.
Complete the observatory.
Complete the third episode with over 30 minutes to spare.
Complete the conservatory.
Complete the pantry.
Complete the workshop.
Complete the isolated study.
Complete the master bedroom.
Complete a full run of episode 3 within the time limit.
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 bunker room.
Complete the storage cellars.
Complete the old tower.
Complete the chapel.
Listen to your first audio recording.
Complete the darkroom.
Complete a full run of episode 1 within the time limit.
Complete the chess room.
Complete the passageway.
Complete the office.
Complete the library.
Open your first door in the mansion.
Complete the entrance hall.
Complete the dining hall.
Enter the mansion with a full team of four players.
Complete any act with a full team in under 40 minutes.