Player counts
How many people play The Callisto Protocol?
76
Playing right now
In this narrative-driven, third-person survival horror game set 300 years in the future, the player will take on the role of Jacob Lee – a victim of fate thrown into Black Iron Prison, a maximum-security penitentiary located on Jupiter's moon, Callisto. When inmates begin to transform into monstrous creatures, the prison is thrown into chaos.
We have been measuring The Callisto Protocol hourly since 8 August 2026. We do not backfill numbers from before that.
- Playing right now
- 76
- Peak since we started tracking
- 135
- Estimated owners
- 1,000,000–2,000,000 est.
Estimated band from SteamSpy, not a sales figure.
Questions and answers
- How many people play The Callisto Protocol?
- 76 (playing right now)
- What is the peak player count for The Callisto Protocol?
- 135
- How many people own The Callisto Protocol?
- 1,000,000–2,000,000. Estimated band from SteamSpy, not a sales figure.
The Callisto Protocol
More about this game
Browse
