Prime Monster

A roguelite card battler where monsters scheme for parliamentary votes

Cavalier Game Studios · Published by Cavalier Game Studios, Rekoup · Released May 4, 2026

Reviews: Very Positive; 83% of 319
Recent reviews: Not enough recent
Players: 4; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 1 month ago; Sep 3, 2026
Minimum PC: GeForce GT 640; 8 GB RAM · 2 GB disk; Full requirements

What is Prime Monster?

This single-player deckbuilding roguelite takes place in the Fractured Kingdom, where you try to keep a monster politician in power. In each run, you play cards to sway parliamentary debates or convert them into political capital for special tactics, while managing authority, poll ratings, and cash.

For you if...

+you enjoy turn-based planning around opponents with different tactics
+you want optional modifiers that make subsequent runs harder

Not for you if...

−you want substantial permanent progression between runs

What players say

83% of 319 reviews are positive

Players praise the British humor and monster artwork. The most common complaints concern limited variety between runs and shallow deckbuilding.

Screenshots and trailer

Prime Monster system requirements

Minimum: GeForce GT 640, 8 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 10 and above
Processor: Intel Core i5-4590, AMD FX-8320
Graphics: GeForce GT 640, Radeon R7 250
Memory: 8 GB RAM
Storage: 2 GB available space
DirectX: Version 11

Does Prime Monster have co-op or multiplayer?

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

Single-player

Does Prime Monster run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows
Achievements: 77
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, French, German, Spanish - Spain, Simplified Chinese.

Does Prime Monster 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