Quantum Protocol

Quantum Protocol

Kaio Meris · 2020 · Anime, Deckbuilding, Card Game, Visual Novel, Class-Based

PC
Very Positive91% · 656
Best price
$12.99
lowest tracked $9.09
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Steam
Standard Edition · Steam
$12.99
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About Quantum Protocol

https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1328530/extras/quantumGif1.gif
Build your deck as you go in this challenging card game. Take on multiple scenarios. Some will be quick puzzles, others will be long tests of endurance. You'll need to spend as much time planning your approach as executing it.

Change Your Deck. At Any Time.


Adapt to any situation quickly. But be careful, enemies will adapt as well.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1328530/extras/buildShow.jpg

Break Any System. Even the Game Itself.


Cards are your hacking tools. With so many to choose from, no two runs will be the same.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1328530/extras/cardShow.jpg

Behind Every Program, A Dream.


Experience the lives of the people behind the code. Even as an unstoppable computer virus threatens to destroy the modern world, sometimes the most important problems are the ones hidden inside each of us.
https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/1328530/extras/bgShow.jpg

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended May 9, 2026
从超时空方舟闻名而来的,打完剧情后感觉相比卡牌游戏,其实更像是陷阵之志
Recommended Apr 13, 2026
Underrated game. Reasonably fun despite a very lengthy tutorial and "puzzle" section, which then opens to a story mode, which then opens to a roguelike. Very fast and strategic battles. Very well worth a play if you're into card games.
Recommended Mar 22, 2026
Quantum Protocol is a nice game but really difficult to complete.
Recommended Jan 31, 2026
This is smart as hell and because it's always your turn like Slay the spire you plan ahead what to do and the combo feels amazing, I will try my best to finish it,
Recommended Dec 26, 2025
A great single player card game. Figured I'd leave a review now that I am doing my third playthrough.
Recommended Nov 22, 2025
It is a nice game with, unfortunately, a horrible flaw that makes the endgame completely unplayable for me - you can't resume the (lengthy, multistage) endgame fights. If you close the game - you have to start from the beginning. This is just not how I roll.

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