Released Dec 1, 2022 $59.99 Mixed Counts toward your Steam games

The Callisto Protocol™

By Striking Distance Studios · published by KRAFTON, Inc.

Horror Sci-fi Survival Horror Third-Person Shooter Space Shooter Third Person Action-Adventure PvEStory RichAction3D

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Followers —

Reviews 35,210 Mixed

Players yesterday 46 at the busiest moment

Owners 1M–2M estimated

The Callisto Protocol™ is a game tagged Horror, Sci-fi and Survival Horror by Striking Distance Studios, released Dec 1, 2022. It has 35,210 Steam reviews (Mixed). It has an estimated 1M–2M owners on Steam. The Steam games most like it include Negative Atmosphere, HELL OF FEAR: Mind Breach and Selene's Unbearable Night.

Survive to escape the horrors of Callisto and uncover the dark secrets of Jupiter’s dead moon.

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<a href="https://launchrivals.com/games/1544020-the-callisto-protocol"><img src="https://launchrivals.com/games/1544020/badge.png" alt="The Callisto Protocol™ launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/1544020-the-callisto-protocol"><img src="https://launchrivals.com/games/1544020/badge.png?theme=light" alt="The Callisto Protocol™ launch date" width="320" height="84"></a>

Negative Atmosphere 82% match · Horror, Sci-fi, Survival Horror
HELL OF FEAR: Mind Breach 73% match · Horror, Sci-fi, Survival Horror
Selene's Unbearable Night 72% match · Horror, Survival Horror, Third-Person Shooter
Death Scourges 72% match · Horror, Survival Horror, Third-Person Shooter
Satellite Odyssey: Jupiter 69% match · Horror, Sci-fi, Survival Horror
LEGION:DEAD METAL 69% match · Horror, Sci-fi, Survival Horror
Dead Space™ 2 69% match · Horror, Sci-fi, Survival Horror
ENTITY: THE BLACK DAY 68% match · Horror, Sci-fi, Survival Horror
Fear The Timeloop 68% match · Horror, Survival Horror, Third-Person Shooter
Dead Space (2008) 66% match · Horror, Sci-fi, Survival Horror

Steam data

Everything Steam lists for The Callisto Protocol™ · record updated 1 day ago

Steam store

Overview

App ID1544020

Release dateDec 1, 2022

Last change number39323160

Last record update1 day ago

App type: Game
Developer: Striking Distance Studios
Publisher: KRAFTON, Inc.
Steam profile: Counts toward game count and achievement totals · checked Nov 1, 2025
Website: callisto.sds.com

Windows 64-bit

Steam Deck: Verified
Controller: Full support

Single-playerSteam AchievementsSteam CloudFull controller supportFamily Sharing

Prices

Price · US$59.99

On sale0 of 40regions right now

Lowest seen · US$59.99Oct 24, 2026

Checked1 day agoin 40 regions

Kazakhstan₸KZT

Every price change is kept from Oct 24, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
14745831	public	Jul 30, 2024

Packages & DLC

ID	Name	Price (US)
2005972	Not on the store yet	—
2005983	Not on the store yet	—
2005984	Not on the store yet	—
2006030	Not on the store yet	—
2015680	Not on the store yet	—
2021870	Not on the store yet	—
2021871	Not on the store yet	—
2163870	Not on the store yet	—
2341550	Not on the store yet	—
2518830	Not on the store yet	—
2518840	Not on the store yet	—
2518850	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
228988	— shared from 228980	Windows	—	—	—
228990	— shared from 228980	Windows	—	—	—
1544021	—	Windows	75.81 GB	71.96 GB	1938704689332826260
1544022	— Spanish	All	2.70 GB	2.68 GB	2253974945000192419
1544023	— Koreana	All	2.58 GB	2.56 GB	2952601058967732735
1544024	— Japanese	All	2.67 GB	2.65 GB	7071711589262804358
1544025	— Italian	All	2.60 GB	2.58 GB	8710805714010989214
1544026	— German	All	2.63 GB	2.61 GB	1382732365015220676
1544027	— French	All	2.64 GB	2.62 GB	6091474570632021120
1544028	— Schinese	All	2.57 GB	2.56 GB	8455216624062883499
1544029	—	All	75.81 GB	72.03 GB	6461402176732461241

Branch	Build	Updated	Access
public	14745831	Jul 30, 2024	Open

Configuration

Install foldersteamapps/common/The Callisto Protocol

Executable	Systems	Description
TheCallistoProtocol.exe	Windows
Phoenix.exe	Windows	Non-Shipping Build
Phoenix.exe	Windows	Non-Shipping Build

Space per player976.6 KB

Filesup to 10

Save locations1

Root	Path	Pattern	Systems
WinAppDataLocal	CallistoProtocol\Saved\SaveGames	*.sav	Windows

Update history

Oct 25, 2026 · 14:35 #39323160
- appid removed
- common.ReleaseState added released
- common.releasestate removed
- config.launch.2.config.BetaKey added uranium
- config.launch.2.config.betakey removed
- config.launch.3.config.BetaKey added argon
- config.launch.3.config.betakey removed

Data from public Steam pages, updated daily; 1 day of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.

The Callisto Protocol™

About The Callisto Protocol™

Steam data

Overview

App info

Platforms

Features

Prices

Kazakhstan₸KZT

Americas 10

Europe 5

CIS 4

Asia-Pacific 14

Middle East & Africa 7

Patches

Builds

Packages & DLC

DLCs

Depots

Depots

Branches

Configuration

Launch options

Cloud saves

Update history

Changes to the Steam record