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The Callisto Protocol

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App ID 1544020
App Type Game
Store Name The Callisto Protocol™
Developer
Publisher KRAFTON, Inc.
Supported Systems Windows
Technologies Unreal Engine, EpicOnlineServices SDK
Last Changenumber 31631369
Last Record Update 13 October 2025 – 04:56:53 UTC ()
Release Date 2 December 2022 – 05:00:00 UTC ()
😌 64.54%
41k reviews
59
In-Game
😱 Horror 🚀 Sci-fi 🎒 Survival Horror 🔫 Third-Person Shooter 🌠 Space

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

Additional Information

Developer Striking Distance Studios
controller_support full
community_visible_stats Yes
DLCAvailableOnStore Yes
ReleaseState released
Publisher KRAFTON, Inc.
eulas
0 ↴
id1544020_eula_0
nameThe Callisto Protocol EULA
urlhttps://store.steampowered.com//eula/1544020_eula_0
version1
1 ↴
id1544020_eula_1
nameThe Callisto Protocol EULA
urlhttps://store.steampowered.com//eula/1544020_eula_1
version1
2 ↴
id1544020_eula_2
nameThe Callisto Protocol EULA
urlhttps://store.steampowered.com//eula/1544020_eula_2
version1
Store Release Date 2 December 2022 – 05:00:00 UTC ()
osarch 64
community_hub_visible Yes
Social Media https://discord.com/invite/tetqmCgwJz
Primary Genre Action (1)
Store Genres Action (1), Adventure (25)
Steam Release Date 2 December 2022 – 05:00:00 UTC ()
Store Asset Modification Time 21 December 2023 – 02:56:56 UTC () (1703127416)
library_assets
library_capsuleen
library_heroen
library_logoen
library_headeren
logo_position ↴
pinned_positionBottomLeft
width_pct50.11627906976748
height_pct100
osextended empty string
name_localized
schinese《木卫四协议》
review_score 5
review_percentage 65
Detected Technologies (?) Unreal Engine, CEF SDK, Discord SDK, EpicOnlineServices SDK, Intel_OID SDK, Intel_oneTBB SDK, NVIDIA_APEX SDK, NVIDIA_GeForce_Now SDK, NVIDIA_Nsight_Aftermath SDK, NVIDIA_PhysX SDK, NvCloth SDK, Ogg SDK, OpenXR SDK, Vorbis SDK, Wwise SDK, XAudio2 SDK
Steam Deck Compatibility
  • Steam Deck:
  • All functionality is accessible when using the default controller configuration
  • This game shows Steam Deck controller icons
  • In-game interface text is legible on Steam Deck
  • This game's default graphics configuration performs well on Steam Deck
  • Note: Singleplayer gameplay requires an active Internet connection
  • Note: This game does not default to external Bluetooth/USB controllers on Deck, and may require manually switching the active controller via the Quick Access Menu
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  • Note: Singleplayer gameplay requires an active Internet connection
  • Note: This game does not default to external Bluetooth/USB controllers on SteamOS, and may require manually switching the active controller via the Quick Access Menu
  •  
  • category: Verified
  • steamos_compatibility: Compatible
  • test_timestamp: 31 January 2023 – 00:00:00 UTC
  • tested_build_id: 10401901
  • configuration:
    supported_inputgamepad
    requires_manual_keyboard_invoke0
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_01
    non_deck_display_glyphs0
    small_text0
    requires_internet_for_setup0
    requires_internet_for_singleplayer1
    recommended_runtimeproton-7.0-6
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
Content Descriptors Frequent Violence or Gore (2), General Mature Content (5)
First seen on SteamDB 3 February 2021 – 01:06:55 UTC (), in changelist #10635995
Content Descriptors (Including DLC) Frequent Violence or Gore (2), General Mature Content (5)

Supported Languages

12 Languages Interface Full Audio Subtitles Achievements
English Yes Yes Yes Yes
French Yes Yes Yes Yes
Italian Yes Yes Yes Yes
German Yes Yes Yes Yes
Spanish - Spain Yes Yes Yes Yes
Japanese Yes Yes Yes Yes
Korean Yes Yes Yes Yes
Polish Yes Yes Yes
Portuguese - Brazil Yes Yes Yes
Simplified Chinese Yes Yes Yes Yes
Spanish - Latin America Yes Yes Yes
Russian Yes Yes Yes

Tags

😱 Horror 🚀 Sci-fi 🎒 Survival Horror 🔫 Third-Person Shooter 🌠 Space 🔫 Shooter 👤 Third Person 🌄 Action-Adventure 🌲 PvE 💥 Action 📚 Story Rich 🧊 3D 📏 Linear 🌱 Realistic 🗺️ Adventure 🤖 Robots 🍿 Cinematic 😨 Dark 🌆 Futuristic 👤 Singleplayer

Categories

Single-player Steam Achievements Steam Cloud Family Sharing

Hardware Categories

Full Controller Support

Assets

Load all asset images
clienticon 9ca447eb170a857e47d3a5dde64824a3f98b9f5e
clienttga fa6572258660d7cd41d66e89e931e00b94c545c8
icon c3ce7b2c108283a422c4bd44dcfe8cbc17fb4c88
clienticns 63c994113dc99985a7375aa498c0913adf401116
LinuxClientIcon 8cf8ee8f74491aa5347eab7542a6e395e6564c52
small_capsule
englishcapsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishlogo.png
logo_position/pinned_positionBottomLeft
logo_position/width_pct50.11627906976748
logo_position/height_pct100
library_header ↴
image/englishlibrary_header.jpg
Assets
main_capsulecapsule_616x353.jpg
small_capsulecapsule_231x87.jpg
headerheader.jpg
page_backgroundpage_bg_generated_v6b.jpg
hero_capsulehero_capsule.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_iconc3ce7b2c108283a422c4bd44dcfe8cbc17fb4c88.jpg
page_background_pathapp/1544020
raw_page_backgroundpage_bg_raw.jpg
timestamp13 October 2025 – 04:56:43 UTC

Trailer 642833 ↴

trailer_name The Callisto Protocol - Anniversary Trailer
trailer_category 0
trailer_480p ↴
video/webm 256990264/movie480_vp9.webm
video/mp4 256990264/movie480.mp4
trailer_max ↴
video/webm 256990264/movie_max_vp9.webm
video/mp4 256990264/movie_max.mp4
microtrailer ↴
video/webm 1544020/642833/25bdfb6eaababc4d89f9436df6df797da4692515/1750699522/microtrailer.webm
video/mp4 1544020/642833/25bdfb6eaababc4d89f9436df6df797da4692515/1750699522/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1544020/642833/25bdfb6eaababc4d89f9436df6df797da4692515/1750699522/dash_av1.mpd
dash_h264 1544020/642833/25bdfb6eaababc4d89f9436df6df797da4692515/1750699522/dash_h264.mpd
hls_h264 1544020/642833/25bdfb6eaababc4d89f9436df6df797da4692515/1750699522/hls_264_master.m3u8
screenshot_medium 256990264/movie.293x165.jpg
screenshot_full 256990264/movie_full.jpg
all_ages true
is_highlight true
timestamp 21 December 2023 – 02:58:37 UTC

Trailer 516133 ↴

trailer_name The Callisto Protocol - Launch trailer
trailer_category 0
trailer_480p ↴
video/webm 256917573/movie480_vp9.webm
video/mp4 256917573/movie480.mp4
trailer_max ↴
video/webm 256917573/movie_max_vp9.webm
video/mp4 256917573/movie_max.mp4
microtrailer ↴
video/webm 1544020/516133/f15080835c9cd0af66d6a52eeee6cb6d85b5cc63/1750700386/microtrailer.webm
video/mp4 1544020/516133/f15080835c9cd0af66d6a52eeee6cb6d85b5cc63/1750700386/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1544020/516133/f15080835c9cd0af66d6a52eeee6cb6d85b5cc63/1750700386/dash_av1.mpd
dash_h264 1544020/516133/f15080835c9cd0af66d6a52eeee6cb6d85b5cc63/1750700386/dash_h264.mpd
hls_h264 1544020/516133/f15080835c9cd0af66d6a52eeee6cb6d85b5cc63/1750700386/hls_264_master.m3u8
screenshot_medium 256917573/movie.293x165.jpg
screenshot_full 256917573/movie_full.jpg
all_ages true
is_highlight true
timestamp 23 November 2022 – 04:25:04 UTC

Trailer 501742 ↴

trailer_name The Callisto Protocol - Trailer
trailer_category 0
trailer_480p ↴
video/webm 256909030/movie480_vp9.webm
video/mp4 256909030/movie480.mp4
trailer_max ↴
video/webm 256909030/movie_max_vp9.webm
video/mp4 256909030/movie_max.mp4
microtrailer ↴
video/webm 1544020/501742/8c2fbdb8e7ae0ccf40ef106a1f0c21277de0c30f/1750699466/microtrailer.webm
video/mp4 1544020/501742/8c2fbdb8e7ae0ccf40ef106a1f0c21277de0c30f/1750699466/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1544020/501742/8c2fbdb8e7ae0ccf40ef106a1f0c21277de0c30f/1750699466/dash_av1.mpd
dash_h264 1544020/501742/8c2fbdb8e7ae0ccf40ef106a1f0c21277de0c30f/1750699466/dash_h264.mpd
hls_h264 1544020/501742/8c2fbdb8e7ae0ccf40ef106a1f0c21277de0c30f/1750699466/hls_264_master.m3u8
screenshot_medium 256909030/movie.293x165.jpg
screenshot_full 256909030/movie_full.jpg
all_ages true
is_highlight true
timestamp 3 October 2022 – 19:50:39 UTC

Trailer 469738 ↴

trailer_name The Callisto Protocol - Announce Trailer
trailer_category 0
trailer_480p ↴
video/webm 256890370/movie480_vp9.webm
video/mp4 256890370/movie480.mp4
trailer_max ↴
video/webm 256890370/movie_max_vp9.webm
video/mp4 256890370/movie_max.mp4
microtrailer ↴
video/webm 1544020/469738/abd7fbae1a001713cfe3f89d758220801b141cd2/1750699465/microtrailer.webm
video/mp4 1544020/469738/abd7fbae1a001713cfe3f89d758220801b141cd2/1750699465/microtrailer.mp4
adaptive_trailers ↴
dash_av1 1544020/469738/abd7fbae1a001713cfe3f89d758220801b141cd2/1750699465/dash_av1.mpd
dash_h264 1544020/469738/abd7fbae1a001713cfe3f89d758220801b141cd2/1750699465/dash_h264.mpd
hls_h264 1544020/469738/abd7fbae1a001713cfe3f89d758220801b141cd2/1750699465/hls_264_master.m3u8
screenshot_medium 256890370/movie.293x165.jpg
screenshot_full 256890370/movie_full.jpg
all_ages true
is_highlight true
timestamp 25 October 2022 – 00:37:22 UTC

User File System

Key Value
quota 976.56 KiB (1000000)
maxnumfiles 10
savefiles
2 ↴
rootWinAppDataLocal
pathCallistoProtocol\Saved\SaveGames
pattern*.sav
platforms/1Windows

Save File Locations

Based on the configuration above, this is where we think the save files are located.

Read more about cloud saves in Steamworks documentation.

Platform Path Pattern
Windows %USERPROFILE%/AppData/Local/CallistoProtocol\Saved\SaveGames *.sav
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