The Monster Within

Roguelite deckbuilding where losing health changes which cards you can buy

GMO Free Games · Released Oct 22, 2022

As of Oct 28, 2026: -80% right now, $2.99

Reviews: Mostly Positive; 77% of 90
Recent reviews: Not enough recent
Players: 1; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Nov 13, 2024
Minimum PC: 1Gb Memory; 4 GB RAM · 2 GB disk; Full requirements

What is The Monster Within?

A single-player card game set in a monster-filled city, where you fight other creatures while resisting your own transformation. You choose a monster and build a fresh deck each battle, buying cards to attack, defend, or generate resources for later purchases.

For you if...

+you enjoy combining monster-specific cards with passive upgrades
+you like raising difficulty to unlock content faster

Not for you if...

−you want opponents who play cards against you

What players say

77% of 90 reviews are positive

Players praise the comic-book artwork, retro music, and strategic depth. Some criticize repetitive play, while others report freezing or being unable to select a character.

Screenshots and trailer

The Monster Within system requirements

Minimum: 1Gb Memory, 4 GB RAM, 2 GB of disk space.

As published by the developer.

Can my PC run The Monster Within?

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Minimum

OS: Windows XP, Vista, 7, 8/8.1, 10
Processor: 2.0 Ghz
Graphics: 1Gb Video Memory
Memory: 4 GB RAM
Storage: 2 GB available space

Does The Monster Within have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does The Monster Within run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 22
Steam features: Family Sharing
Languages: Text only: English.

Does The Monster Within use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam