Chasm
20 Achievements
20-25h
GOG
Wendigo
Defeat the Wendigo. Details for this achievement will be revealed once unlocked
48.5%
How to unlock the Wendigo achievement in Chasm - Definitive Guide
Timmah200
Story related; cannot be missed.
The Wendigo is the final boss in the Mines. He can disappear and reappear to strike you, charge at you, and claw to the ceiling to drop rocks before plunging down and sending out waves of fire in both directions. Upon killing him, this trophy will unlock.
This is the boss you'll most likely want to use to unlock Prizefighter 
.