Quantum Protocol

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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!

Developer: Kaio Meris
Released: 4 Nov 2020
Price: $12.99
Platforms
Steam Deck: Playable
Languages: English +4

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Players on Steam, last 48 hours

Updates News

No player readings for Quantum Protocol in the last 48 hours yet. We poll this game every 30 days.

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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Quantum Protocol

Players on Steam, last 48 hours

Quantum Protocol

Players on Steam, last 48 hours

Players By Month

Players By Month