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Kodoku：As the Moon Mourns

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App ID 3864610
App Type Game
Developer
Publisher Hirasaka
Supported Systems Windows
Last Changenumber 37471527
Last Record Update 23 July 2026 – 10:50:30 UTC ()
Release Date 7 May 2026 – 23:37:10 UTC ()
❓ 73.26%
7 reviews
0
In-Game
😱 Horror 🕴 Psychological Horror 🙏 Faith 💥 Action 🎒 Survival Horror

Kodoku is a single-player survival horror experience that challenges you to escape a monster-infested dimension. Urohoshi, a university folklore professor, sets out on a journey through a darkness-filled otherworld in search of his missing friend—gathering souls while evading grotesque monsters.

Additional Information

Developer Hirasaka
controller_support full
community_visible_stats Yes
ReleaseState released
Publisher Hirasaka
Store Release Date 7 May 2026 – 23:37:12 UTC ()
osarch empty string
community_hub_visible Yes
Social Media https://x.com/hirasaka_anime
https://www.youtube.com/@hirasaka_foundfootage-ck4iu/featured
Primary Genre Indie (23)
Store Genres Action (1), Indie (23)
Steam Release Date 7 May 2026 – 23:37:10 UTC ()
Store Asset Modification Time 25 April 2026 – 07:21:48 UTC () (1777101708)
library_assets
library_capsuleen
library_heroen
library_hero_bluren
library_logoen
library_headeren
logo_position ↴
pinned_positionBottomLeft
width_pct72.93364377182772
height_pct78.49679411066253
osextended empty string
name_localized
japaneseKodoku -コドク-
Steam Deck Compatibility
  • Steam Deck:
  • This game's graphics settings cannot be configured to run well on Steam Deck
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  • 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: Unsupported
  • steamos_compatibility: Compatible
  • steam_machine_compatibility: 0
  • test_timestamp: 23 May 2026 – 00:00:00 UTC
  • tested_build_id: 23172852
  • steam_machine_tests:
  • 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_singleplayer0
    recommended_runtimeproton-11.0-beta
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
    requires_proton_soundfonts0
Content Descriptors Frequent Violence or Gore (2), General Mature Content (5)
controllertagwizard Yes
AI Content Type 1
First seen on SteamDB 7 July 2025 – 09:57:12 UTC (), in changelist #29928202
Content Descriptors (Including DLC) Frequent Violence or Gore (2), General Mature Content (5)

Supported Languages

3 Languages Interface Full Audio Subtitles Achievements
English Yes Yes Yes
Simplified Chinese Yes Yes Yes
Japanese Yes Yes Yes Yes

Tags

😱 Horror 🕴 Psychological Horror 🙏 Faith 💥 Action 🎒 Survival Horror 🦄 Psychedelic 🫂 Psychological 🥷 Stealth 👤 Singleplayer 🦘 3D Platformer 🌱 Indie 🙌 First-Person 👊 Violent 🧊 3D 👻 Roguelike

Categories

Single-player Steam Achievements Family Sharing Profile Features Limited

Hardware Categories

Full Controller Support

Accessibility Categories

Camera Comfort Custom Volume Controls Stereo Sound Playable without Timed Input

Assets

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Assets
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page_background_pathapp/3864610
last_modified7 May 2026 – 23:37:11 UTC
timestamp7 May 2026 – 23:37:11 UTC

Trailer 965368 ↴

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trailer_category 3
microtrailer ↴
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adaptive_trailers ↴
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all_ages true
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timestamp 20 April 2026 – 12:45:06 UTC

Trailer 965375 ↴

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trailer_category 1
microtrailer ↴
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adaptive_trailers ↴
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all_ages true
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timestamp 20 April 2026 – 12:45:08 UTC

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