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Theseus Protocol

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.

Steam Page
Developer
YueTang(Xiamen)
Publisher
Archive Games
Release
August 22, 2023
2 years and 346 days ago
Steam Reviews
Mixed372 reviews69.6%

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Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is Theseus Protocol self-published or published by Archive Games?Publisher statusHow the game's publishing relationship is classified.
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Search Google: Who controls the creative direction and IP for Theseus Protocol and YueTang(Xiamen)?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.
The title released with a separate publisher relationship.

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About the Game



Theseus Protocol is a deck building strategy roguelike set in a dire dystopian world. Take the role of Prometheus and alter the fate of humanity with a collection of vigorous cards and a variety of weapons at the ready. Journey across disparate lands, encounter relentless foes, and unveil Mark City’s darkest secrets.



Unravel the fragmented narrative of Mark City across a divergent city riddled with elitist conspiracies and gang induced turmoil. Explore branching paths through successive playthroughs and reveal the history behind Mark City and its inhabitants. Each step plays a role in uncovering the truth.



Engage in stimulating turn-based battles and unleash an arsenal of extraordinary cards against brutal adversaries. Gain the tactical advantage by changing positions to dodge incoming attacks and even cause enemies to crash into one another. Leave no waste, as any cards leftover can be utilized as ammunition for Prometheus’ weaponry. The fate of humanity lies within the ultimate deck and a masterful strategy.

Key Features:
  • Dynamic and stimulating turn-based battles with a strategic twist
  • Nonlinear, fractured narrative to unravel across a roguelike adventure
  • Progressive deck building through successive runs
  • Influential card-fueled weaponry
  • Three playable characters all with unique combat styles and narrative threads
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