Here is the full list of all 22 Strangeland achievements.
Died every possible way.
Lasted as long as Rosencrantz and Guildenstern.
Correctly identified the Young, Middle Age, and Old Strangers.
Resisted opening the box.
The Stranger jumped.
The Stranger died fighting.
The Stranger killed himself.
The Stranger escaped Strangeland.
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.
Won the Shooting Gallery on the highest speed.
Starting Out.