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