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.
Reject the will and your inheritance.
Complete the transfer chamber.
Witness another player complete the transfer.
Completed all four episodes within the time limit.
Deliberately take out the entire mansion, and whatever may be lost with it.
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.
Unlock a hundred doors.
Complete the south garret.
Complete the gallery.
Complete the observatory.
Complete the workshop.
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 isolated study.
Complete the conservatory.
Complete the greenhouse.
Complete the master bedroom.
Complete the wine cellar.
Complete the darkroom.
Open 50 doors.
Complete a full run of episode 2 within the time limit.
Complete the second episode with over 30 minutes to spare.
Complete the archives.
Complete the storage cellars.
Complete the chapel.
Complete the old tower.
Complete the bunker room.
Complete the dining hall.
Complete the game room.
Complete any act with a full team in under 40 minutes.
Complete the library.
Complete the office.
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 a full run of episode 1 within the time limit.
Complete the passageway.
Complete the guest wing.
Complete the study parlor.
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.