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Arm of Satan: Chapter 1

ARM OF SATAN is a tough 2D platformer that can be played solo, or with a unique 2-player local co-op mode. Featuring kick ass visuals influenced by the Hellboy comics, arcade-inspired gameplay, and a deep and captivating narrative.

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Release
October 31, 2025
275 days ago
Steam Reviews
8 user reviews8 reviews100.0%

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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
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About the Game

Out Now!

ARM OF SATAN is a tough 2D platformer designed for unique 2-player co-op.

Featuring kick ass visuals influenced by the Hellboy comics, arcade-inspired gameplay, and a deep and captivating narrative.

The game can be played single-player as a difficult twin-stick, but it is designed to be a truly awesome co-op experience.

Arm of Satan follows the journey of two characters: Girl & Arm.

Girl should not be here. Arm claims to know a way out…

Together, they descend through the underworlds in search of salvation

GIRL

Girl controls like a classic platformer. She is in charge of movement and jumping.

(great for onboarding newer or younger players).

ARM

Arm is an action-oriented role: grabbing, punching and throwing to protect Girl.

TOGETHER...

Girl & Arm must synchronise to traverse, dodge and climb their way through the treacherous depths of the underworld.

ARCADE MODE

Finished the story? Play endlessly in ARCADE MODE, the dedicated speed-running mode with 'Tribulations' that challenge you to set fast times.