Theseus Protocol on Steam - User reviews, Price & Information

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Theseus Protocol is a deck building roguelike where rebirth offers strategic opportunity. Utilize a powerful suite of cards and weaponry to uncover the cruel truth behind the dystopian sci-fi world of Mark City.

Theseus Protocol is a roguelike deckbuilder, card game and card battler game developed by YueTang(Xiamen) and published by Archive Games.
Released on August 22nd 2023 is available only on Windows in 4 languages: English, Simplified Chinese, Traditional Chinese and Japanese.

It has received 370 reviews of which 258 were positive and 112 were negative resulting in a rating of 6.6 out of 10. 😐

The game is currently priced at 9.75€ on Steam.

The Steam community has classified Theseus Protocol into these genres:

Roguelike Deckbuilder Card Game Card Battler Deckbuilding Rogue-like Turn-Based Combat Tactical RPG Anime Strategy RPG Story Rich Female Protagonist 2D Cyberpunk RPG Choices Matter Sci-fi Robots Futuristic Singleplayer Colorful

Media & Screenshots

Get an in-depth look at Theseus Protocol through various videos and screenshots.

Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot
Theseus Protocol screenshot

System requirements

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

Windows
  • Requires a 64-bit processor and operating system
  • OS: Windows 10(64bit)
  • Processor: Dual Core 2 GHz(64bit)
  • Memory: 4 GB RAM
  • Graphics: Intel HD 4600(AMD or NVIDIA equivalent)
  • DirectX: Version 11
  • Storage: 4 GB available space

User reviews & Ratings

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

June 2024
It's true that there isn't a whole lot to the game yet, though I'll say that for $10, it's very fun, well-made, and so far both Charlotte and Antiope are very different and very fun to play in their own ways. I love both, in terms of both gameplay and design. The story is poorly-translated, so that's definitely something that needs work, and the cutscenes make no sense. I'm giving this a positive review because I think that everything the game does have is far more important than what it lacks. I love this game, and I highly recommend it. It's fantastic for what you pay for it, and you'll get a lot more fun for your money than many other titles.
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Aug. 2023
TL;DR Aside from few UI and translation bits that aren't polished, Theseus Protocol is a decent roguelike deck building game. After completing a run with the 1st character, you'll get past the unfriendly UI and find a nice casual fun. Pros: Visuals are good, nice artworks. Though confusing at first, seeing a lot of buff and debuffs being stacked has its appeal. Consuming cards instead of using them is a nice mechanic unique to this game. Has x3 speed for nice speedy runs. You can resume from the start of the turn anytime, though this kinda allows rerolls/save scumming. Cons: A few bugs here and there where the turn won't finish, but exiting to title and resuming can mostly fix it. UI isn't the most friendly or intuitive, such as the tooltip not fully explaining mechanics and terminologies thoroughly. The damage counter doesn't seem to fully account for all buffs making you take unwanted damage if you're trying to be precise, which would be problematic but midway the defense/attack values should inflate enough to be negligible. Some translations to english is unclear, but nothing too bothering. The map path is visually linear, unlike other games of this genre, but only visually. Once you land on the spot you'll see the choices you can make, which I don't know why it's not visible ahead of time when it's mostly set events anyway. Anyways, I'm enjoying this game enough for the price. On a scale of Slay the Spire to Monster Train with the slow paced planning to fast paced wombo combo, then Theseus Protocol feels closer to Monster Train. The battle UI/layout is like Griftlands. The balance feels outta whack though, but they more or less exist in other games as well so it shouldn't be much of a problem. Theseus Protocol is a 7/10.
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Jan. 2023
If you like games like Slay the Spire and Monster Train, you will probably enjoy Theseus Protocol. It's different, but it's by no means going to start a revolution in the genre, nor is it going to be genre defining like Slay the Spire was. It's cheap, it's fun, and it's sadly too short. Hopefully this will be fleshed out in the future, as I can see this becoming incredibly good fun when it's polished more. Better translations also would not hurt.
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Jan. 2023
Not a bad game overall. It is still in EA, therefore there are several points of improvements. The good: The game play is easy to understand so far. The gun mechanic and customization is pretty neat. The game is not difficult and bosses are fair/ weak. Game is stable for me. Points of improvements: Currently there are no good ways to have variety in builds. For charlotte, there is shock, bullets and metal beast. The metal beasts are really rare as combat rewards so the only way is mostly to get them from shops. So an average build is mix of bullets and shock. The events are quite long and unnecessary. There are loads of text with translation errors. And the rewards from events are not transparent. The game is quite easy to beat and quite short. No difficulty adjustment to challenge.
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Jan. 2023
Slay the spire-esque with added mechanics. Seems promising but definitely needs some spellchecking/grammar review in English.
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Frequently Asked Questions

Theseus Protocol is currently priced at 9.75€ on Steam.

Theseus Protocol is currently not on sale. You can purchase it for 9.75€ on Steam.

Theseus Protocol received 258 positive votes out of a total of 370 achieving a rating of 6.64.
😐

Theseus Protocol was developed by YueTang(Xiamen) and published by Archive Games.

Theseus Protocol is playable and fully supported on Windows.

Theseus Protocol is not playable on MacOS.

Theseus Protocol is not playable on Linux.

Theseus Protocol is a single-player game.

Theseus Protocol does not currently offer any DLC.

Theseus Protocol does not support mods via Steam Workshop.

Theseus Protocol does not support Steam Remote Play.

Theseus Protocol 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 Theseus Protocol.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

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 04 July 2025 12:14
SteamSpy data 06 July 2025 13:24
Steam price 13 July 2025 04:29
Steam reviews 12 July 2025 19:53

If you'd like to dive deeper into the details about Theseus Protocol, 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 Theseus Protocol
  • SteamCharts - Analysis of Theseus Protocol concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Theseus Protocol compatibility
Theseus Protocol
9.75€
6.6
258
112
Game modes
Features
Online players
0
Developer
YueTang(Xiamen)
Publisher
Archive Games
Release 22 Aug 2023
Platforms
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