Announcement
Aug 2026 Update
Right clicking a card now shows the full effect text, not just a larger card image.
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Quantum Protocol
Also known as Quantum Protocol, qp, quantum protocol
A deckbuilding card game where it's always your turn. Play as the master hackers of Quantum and take on the most dangerous malware in the world. Every action matters. Make plays, upgrade your deck, and break the enemy board!
Last update
10 Aug 2026
Players now
1
Latest update
Update history
Browse past updates and patch notes for this game.
21 updates
July 2024
- Bug FixPredator enemy will now only chase cards if their health is below their base max health (instead of current max health). This matters for cases where HP is modified.
April 2024
- Bug FixFixed issue where Bow and Katana would not trigger Omen.
February 2024
- Chinese Translation Update-- Correction of card effects and terms -- Updates to story text to read more naturally The updated story text is worth re-reading for veteran players, please give it a try :D
January 2024
- Bug FixesFix issue with damage negation. Damage negation will now show properly in the Action Log, and cards like Taser or Vampire effects will behave more intuitively if they have their damage negated. Fix issue with Treble and…
November 2023
- Small Bug FixFixed an infinite combo that could softlock the game with crosscode cards.
October 2023
- French Localization AddedAdded French localization.
- Nova Drift Collab Arrives!A new collab deck is here, this time featuring the fantastic space shooter Nova Drift! https://store.steampowered.com/app/858210/Nova_Drift/ Many familiar ships and mods take on a new form, reimagined as Quantum Protoco…
July 2022
- Small Patch 7-5-2022Fix broken Discord link on the title screen.
April 2022
- Localization UpdateUpdated Chinese text.
January 2022
- Chinese Localization UpdateSmall update to localization.
- Chinese Localization UpdateSmall changes to Chinese text.
Gallery
In-game media
Achievements
Community progression
Top picks from 11 Steam achievements, sorted by player unlock rates.
- Lumei AcademyClear the Lumei Academy dungeon.69.0%
- Aegis IndustriesClear the Aegis Industries dungeon.35.8%
- Neskara SystemsClear the Neskara Systems dungeon.29.4%
- Mirror NetClear the Mirror Net dungeon.27.7%
- Black AnchorClear the Black Anchor dungeon.17.3%
- Dragoon's CometClear the Dragoon's Comet dungeon.12.5%