Here is the full list of all 22 Strangeland achievements.
Talked to all the major characters.
The Stranger killed himself.
The Stranger jumped.
Died every possible way.
Resisted opening the box.
Gathered all the spirits using the torch.
Lasted as long as Rosencrantz and Guildenstern.
The Stranger escaped Strangeland.
The Stranger died fighting.
Got the final knife.
Exited the Hall of Mirrors.
Reached the Hall of Mirrors.
Correctly identified the Young, Middle Age, and Old Strangers.
Got Tooth.
Killed the Crab.
Persuaded Nineveh to hone Beak.
Heard all the Clown's jokes.
Opened the box.
Released the Dark Thing.
Got Beak.
Won the Shooting Gallery on the highest speed.
Starting Out.