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The Callisto Protocol cover
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The Callisto Protocol

Steam Player Count & Twitch Viewers / Streams
// updated 4 min ago
Steam Players
46
-2 // vs 7d ago
46 // 24 hr peak
Twitch Viewers
74
+72 // vs 7d ago
106 // 24 hr peak
Twitch Streams
12
+9 // vs 7d ago
12 // 24 hr peak
Date Steam Players Twitch Viewers
Aug 234614
Aug 224712
Aug 215117
Aug 204315
Aug 19508
Aug 18499
Aug 174816

Summary

The Callisto Protocol currently has 74 live Twitch viewers across 12 active streams, with viewership up 72 compared to the same time last week.

On Steam, it currently has 46 concurrent players, down 2 compared to the same time last week.

Over the 8 months we've tracked it, The Callisto Protocol's Steam players peaked at 196 and Twitch viewers peaked at 883.

The Callisto Protocol monthly player & viewer history

Month Steam AvgSteam Peak Twitch AvgTwitch Peak
Aug 2026
month to date
52
▼ -26
69
20
▲ +8
164
Jul 2026
78
▼ -2
142
12
▼ -1
500
Jun 2026
80
▲ +41
196
13
▲ +1
239
May 2026
39
▼ -2
60
12
▼ -2
143
Apr 2026
41
▼ -5
63
14
▲ +3
883
Mar 2026
46
▼ -10
60
11
▼ -5
172
Feb 2026
56
▼ -34
170
16
▼ -10
137
Jan 2026
90
—
196
26
—
249

Monthly averages and peak concurrent Steam players and Twitch viewers, since we began tracking The Callisto Protocol.

About

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.

Genres
ShooterAdventure
Platforms
Xbox Series X|SPlayStation 4PC (Microsoft Windows)PlayStation 5Xbox One
Developer
Striking Distance Studios
Publisher
Krafton, Skybound Games
Release Date
December 2, 2022
Game Modes
Single player
Perspective
Third person
Themes
ActionScience fictionHorrorSurvival

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