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Prime Monster

Prime Monster

A card-based political roguelike about surviving in a parliament of literal monsters. Fight for votes, break rules, weather scandals and force through absurd laws to keep the top job in this democratic dystopia of truly monstrous proportions.

Released May 4, 2026 Developer Cavalier Game Studios Publisher Cavalier Game Studios, Rekoup Platforms Windows RogueliteDeckbuildingCard BattlerStrategyTurn-Based Tactics
View on Steam ↗ $19.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

83.6%positive329 reviews
Recommended · 5 found this helpful

“An Absolute blast of a game. While there are many positive and negative things that could be discussed, I wish to highlight something that makes me truly go for just one more run at 5 AM, even as I see the sun rising in the window: this game is incredibly charming. The art…”

— a player, Steam review · 35 hrs played
Recommended · 3 found this helpful

“This game is super easy to understand but still provides a decent enough challenge to make it entertaining and fun. I love the use of the Tactics, and my only complaint is that I REALLY wish they had more playable characters.”

— a player, Steam review · 10 hrs played
Recommended · 3 found this helpful

“Highly recommended if you love card games and dry British humor. You'll laugh, you'll cry, you'll wish the entire British Parliament would vote to launch themselves into the sun. Overall the only thing missing is a few more monsters to play as, but it's early days and the game…”

— a player, Steam review · 14 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

396all-time peak
0 100 200 130 avg · May 2026

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

77achievements
21.3%median completion
1.2%rarest: Full Bismarcks
97.2% of players 95.2% of players 91.3% of players 90.8% of players 83.7% of players 82.4% of players 73.6% of players 72.9% of players 72.0% of players 63.3% of players 61.9% of players 61.0% of players 59.5% of players 56.8% of players 55.5% of players 53.8% of players 53.0% of players 53.0% of players 52.8% of players 51.0% of players 50.8% of players 49.9% of players 47.2% of players 45.9% of players 45.3% of players 42.7% of players 42.5% of players 40.4% of players 35.1% of players 33.8% of players 30.7% of players 30.6% of players 30.4% of players 29.5% of players 29.2% of players 27.0% of players 27.0% of players 26.4% of players 21.3% of players 20.8% of players 19.4% of players 19.2% of players 17.6% of players 17.2% of players 16.5% of players 16.5% of players 15.9% of players 13.5% of players 13.2% of players 12.8% of players 12.8% of players 11.3% of players 10.5% of players 9.6% of players 7.9% of players 7.7% of players 7.2% of players 6.5% of players 6.4% of players 6.4% of players 97.2% 0% most earned rarest
Almost everyone has
97.2%Conviction Politician — Successfully vote against doing a tutorial.
95.2%Yes, Prime Monster — Win an election and become Prime Monster.
91.3%Landslide Victory — Win an election with the highest possible poll rating.
Rarest badges of honor
1.2%Full Bismarcks — Acquire 80 Political Capital.
1.3%Against All Odds — Survive a Vote of Confidence that was triggered when your Authority was -50 or lower.
1.8%Political Masochist — Complete a run having made every possible Pledge.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.

$19.99current · sampled 2026-09-26 21:12 UTC
$19.99lowest since tracking began2026-09-26
US19.99 USD
EU19.99 EUR
UK17.99 GBP
Australia28.50 AUD
Canada23.99 CAD
Japan2,600 JPY
Brazil67.99 BRL
China77.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$11 Brazil Japan Canada US Australia EU UK≈$24

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Sep 03, 2026
Patch 1.4

We’re back! As our faithful political servants trudge back from their summer holidays, so too do we return to try to please and entertain our masters while preserving some shred of our remaining digni

Jul 02, 2026
Patch 1.3

Yes, that’s right - a new patch has received Royal Assent and can now be released to you fine citizens. But what’s it all about? OPENING STATEMENTS Let’s start with what we’ve done to…the start. As of

May 29, 2026
Patch 1.2

As the release month draws to a close, we have another patch for you. And this one contains some much-requested features... FAST MODE Sometimes politicians just don't know when to shut up. We get it.

May 08, 2026
Patch 1.1 is here

Prime Monster has been out for 4 days, and an awful lot of very bad ideas have become law in the Fractured Kingdom. And all thanks to you! You've beaten, killed and cajoled your MPs (sometimes in that

May 04, 2026
Prime Monster is out now!

Order, order! Settle down… Yes, the headline is accurate. The votes have been counted. The result is in… YOU have been duly elected as the next Leader of the Opposition in the Fractured Kingdom. But d

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresCasual, Indie, Strategy
Player tagsRoguelite · Deckbuilding · Card Battler · Strategy · Turn-Based Tactics · Card Game · Roguelike · Funny · Tactical · Singleplayer · Casual · Colorful (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Custom Volume Controls · Playable without Timed Input · Stereo Sound · Steam Cloud · Family Sharing
LanguagesEnglish, French, German, Spanish - Spain, Simplified Chinese
Achievements77
Minimum system requirements (PC)

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