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Prime Monster on Steam

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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.

Prime Monster is a roguelite, deckbuilding and card battler game developed by Cavalier Game Studios and published by Cavalier Game Studios and Rekoup.
Released on May 04th 2026 is available only on Windows.

It has received 328 reviews of which 275 were positive and 53 were negative resulting in a rating of 7.8 out of 10. 😊

The game is currently priced at 13.99€ on Steam with a 30% discount, but you can find it for 10.09€ on Instant Gaming.


The Steam community has classified Prime Monster into these genres:

Media & Screenshots

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System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • 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

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

10 hours played
Aug. 2026
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.
32 hours played
May 2026
The most impressive thing about this game is it makes a card battler roguelike that runs for 2.5 hours that doesn't feel long at all and that when I clear a run I still want to go back and start another. I've LONG thought that any sort of roguelike running longer than 50 minutes is intolerable but this is proof all those games just sucked at it and Prime Monster is exquisite. The second most impressive thing is that, in this modern era where everyone hates each other and the [people from the political party that you, the reader specifically, dislikes] are just one headline away from committing [crime I am forbidden from mentioning per Steam rules], these devs created a game entirely about politics that is extremely funny, accurate to the insanity of it, but manages to never once signal allegiance to [political party that you the reader likes] OR [the party you hate], or any real world politics at all. In this modern era, this must have taken a herculean amount of restraint, as almost nobody else in the past 20 years of media can manage even the pretense of TRYING to do so.
8 hours played
May 2026
It would have been obvious enough for Cavalier Game Studios to 'just' make a straightforward deck-builder; the cards already have numbers on them, make that the Political Capital (energy) cost to play them, and have your Political Capital refresh every turn. Allow you to swap and modify your deck, and there you go; a standard deck-building roguelike. It is to their credit in many ways that they didn't do that. Instead, Prime Monster isn't really a deck-builder, as you can't edit your deck of cards at all. Instead, in the thematics of the game, it's a cabinet-builder - it's about building and managing many aspects of a (dys)functioning government. How you construct your 'battles' (defend your policy decisions) is determined by choices across a number of axis; the Staff your hire, the Tactics you choose, and the cards you upgrade. And the latter is actually the least relevant piece of your puzzle in the end, as your cards function more as fuel for your Tactics as valid actions in and of themselves. While in the early game you will make choices between playing them and consuming them for bonus Political Captial, fairly quickly you'll be mentally assigning cards as 'kind of useful to play because my Political Capital is high' or 'built to be turned into more mana to feed my Tactics'. It's an odd shift to get used to, especially if you've played other card-based deck-builders, where your hand on any given turn is not actually that interesting outside of what it can do to empower the rest of your abilities. The addition of your (and your opponent's) Front Bench MPs as both a victory condition and additional gameplay opportunity gives each battle an interesting twist. They're not just a thematically appropriate health bar; they can have meaningful impact on how you approach any particular challenge, or how you decide to deal with a particular turn. And how you think about approching each run, as they are often instrumental in supporting any particular strategy. Speaking of thematics, the whole game is wrapped in a great and consistent theme. It's very British, and there are plenty of 'in-jokes' to be had for those that know them, but the structure and presentation of the game world is fantastic even without that additional insight. The writing and humour are on point, too. If I were to have one criticism, it would be in how limiting-feeling the 'deck' synergising is. There are many random opportunities to influence your run - staff to buy in the shop after each round, tactics upgrades after debates - but it feels like you're always on the cusp of having something incredibly snowball-y, or creating a deck that feels quite satisfying and never quite getting there. Whether it's a limitation in the number of Tactics slots, or the inability to properly manage your Staff, it feels like there's something that makes it difficult to really focus in on a style of play and try and maximize it. There's perhaps a lack of cultivating your 'deck' (Staff, Tactics, cards) that is often present in other deck-builders; where in Prime Monster it's mostly about constantly adding new things (except cards) whether they synergise or not, and with no real (controllable) ability to remove or modify any of it (ie: card removal in Slay the Spire, or deck modification in Balatro). Once you've found a good combo, you just kind of stick with it, and any upgrades beyond that just sit in your drawer unused. And the chance of finding more Staff members that support your run is low; as they cover both in-battle and out-of-battle passives. I kind of just want to have a bit more control, and feel a bit more pull to move things around and try more synergies. It's an easy enough game to get into, though. And particularly at the easier difficulties it is very approachable, especially if you're new to this type of game, so I suspect would be great for newcomers. The thematic is consistenly carried through and brilliantly realised, and getting synergies to snowball the game is very satisfying. The available characters do want you to play them out differently, so there's good variety there, and with multiple difficulty levels and additional limitations on your run (via Pledges that incur some limits or penalties) it feels like there's plenty of challenge to get through. At some point I will get an all bat run to work out.
16 hours played
May 2026
A good game with excellent potential. Needs more playable characters and/or tactics/cards. Some descriptions need to be made clearer. Future multiplayer mode would be awesome. I find it strange that I have little control over my deck size, which I know tactics make up for, but I feel limited in some way...
11 hours played
May 2026
Prime Monster: A Well Designed, Well Polished Rogue Like Experience With Limitless Potential Let me just start out by saying that this game is phenomenal. As someone who really enjoys Slay the Spire, it really hit the spot. The Good The animations are very well polished, it runs great (I was able to play it on my janky work laptop from 2016), and the overall theme of the game is simply delightful. As a semi-deck builder, the synergies you can achieve here are great, and if you're the sort of person who enjoys striving for perpetual builds in other deck building roguelikes this game will be up your alley (Though it should be noted that hard perpetuals aren't present in the game thanks to ability activation limits.) Now, as other people have noted, the game is not a full deck builder. Your character comes with a set deck of playable cards, and those cards cannot be removed, or new cards added. The only way you can interact with these cards is by upgrading them, which from an initial glance sounds like an extremely limiting gameplay decision, but the game compensates for this by focusing its rogue-like elements on your character abilities. Character abilities Character abilities are really where the RL elements of this game come to shine. Each character is given a set of 5 abilities which they can use throughout the course of each individual session (essentially this games version of encounters) and the vast majority of these abilities are well designed. There are a handful which get out-scaled fairly quickly (such as Viscount Sucksworth's unity granting abilities which become simply irrelevant once one gains wounding abilities) but at large almost all of them are very usable and have interesting synergies that you can really dig at to make your run strategy. The Bad Now one of the most readily available critiques one can make of this game is the lack of content, which is definitely something to consider. At this point in the games development cycle, there are only three playable characters and each of these characters, while each individually having quite a few different playstyles, can get a bit stale after a while. This critique, however, comes tempered with the fact that each of the characters are fairly well designed, so I've found myself enjoying each of them regardless. Additionally, the game can be a bit predictable at times, which can lead to the player finding optimized routes that deletes the inconsistencies of the deck a bit too early into play. A big example of this is the fact that the card effects can be quickly out-scaled by the character abilities, making the cards more of a means to the end of playing a character ability than a strategic consideration in-and-of themselves. A particular example is with the previously mentioned Viscount Sucksworth, who gains an ability which can do 14 damage for 2 political power. In combination with an ability that makes cards give you an extra political power when exploited, you will end up in situations where a 5-damage card can be tossed to use a 14-damage ability, which can at times make the cards feel rather redundant. Even with upgrades it is fairly common to see cards not scaling with the abilities you unlock, so the main wish I have there is that the cards would scale a bit faster. Conclusion In all, I think that Prime Monster is a wonderful game with a lot of potential. Most of my critiques of it boil down to a lack of variety which can absolutely be remedied with continued development. The core gameplay loop overall is phenomenal, and the crazy synergies that you can cook up take me back to my early slay the spire days. I would recommend this game to anyone who enjoys the rogue-like deck building genre, and I can only imagine where it will go if people continue supporting its development.

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Frequently Asked Questions

Prime Monster is currently priced at 13.99€ on Steam.

Yes, Prime Monster is currently available at a 30% discount. You can purchase it for 13.99€ on Steam.

Yes, Prime Monster received 275 positive votes out of a total of 328 achieving a rating of 7.79.
😊

Prime Monster was developed by Cavalier Game Studios and published by Cavalier Game Studios and Rekoup.

Yes, Prime Monster is playable and fully supported on Windows.

No, Prime Monster is not playable on MacOS.

No, Prime Monster is not playable on Linux.

This information about Prime Monster is not available yet.

This information about Prime Monster is not available yet.

No, Prime Monster does not support VR.

Prime Monster is a single-player game.

No, Prime Monster does not currently offer any DLC.

No, Prime Monster does not support mods via Steam Workshop.

No, Prime Monster does not support Steam Remote Play.

Yes, Prime Monster is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Prime Monster.

Data sources

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Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 20 September 2026 14:21 UTC
SteamSpy data 24 October 2026 01:06 UTC
Steam price 26 October 2026 15:39 UTC
Steam reviews 19 October 2026 07:45 UTC

If you'd like to dive deeper into the details about Prime Monster, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Prime Monster
  • SteamCharts - Analysis of Prime Monster concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Prime Monster compatibility
Prime Monster PEGI 7
Rating
7.8
275
53
Game modes
Features
Online players
22
Developer
Cavalier Game Studios
Publisher
Cavalier Game Studios, Rekoup
Release 04 May 2026
Platforms
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