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