Stuck In Attic

Gibbous – A Cthulhu Adventure

2019 point-and-click adventure · adventure game* · horror game*

Cover art for Gibbous – A Cthulhu Adventure

At a glance

Genres

Play modes

  • single-player video game

Game facts

Developers

  • Stuck In Attic

Publishers

  • Stuck In Attic
View full details

Platforms

Compatibility and community reports

  • Linux · Community reports · 2026-06-27*
    Community Linux compatibility tier
    Platinum*
    Reports
    3*
    Community confidence
    low*
  • Steam Deck · 2026-06-27*
    Compatibility category
    Playable*

System requirements

  • Linux · Minimum*
    Operating system
    Ubuntu 12.04+*
    Processor alternatives
    2,5 GHz Intel Core i3 or AMD Athlon*
    Memory
    4 GB RAM*
    Graphics alternatives
    Dedicated video graphics card with 2GB of memory*
    Storage
    20 GB available space*
    Conditions
    Requires a 64-bit processor and operating system*
  • Windows · Minimum*
    Operating system
    Microsoft Windows XP(SP2+)/Vista/7/8/8.1 (64-bit)*
    Processor alternatives
    2,5 GHz Intel Core i3 or AMD Athlon*
    Memory
    4 GB RAM*
    Graphics alternatives
    Dedicated video graphics card with 2GB of memory*
    Graphics API
    Version 9.0c*
    Storage
    20 GB available space*
    Conditions
    Requires a 64-bit processor and operating system · Requires a 64-bit processor and operating system*
  • macOS · Minimum*
    Operating system
    Mac OS X 10.8+*
    Processor alternatives
    2,5 GHz Intel Core i3 or AMD Athlon*
    Memory
    4 GB RAM*
    Graphics alternatives
    Dedicated video graphics card with 2GB of memory*
    Storage
    20 GB available space*
    Conditions
    Requires a 64-bit processor and operating system*
  • Windows · Recommended*
    Processor alternatives
    Intel Core i5-3470, 3.20GHz or AMD FX-6300, 3.5Ghz*
    Memory
    8 GB*
    Graphics alternatives
    nVIDIA GeForce GTX 660, 2 GB or AMD Radeon HD 7870, 2 GB*
  • Windows · Recommended memory · 2026-06-27*
    Memory
    8 GB*

Steam version platforms

  • Windows*
    Supported
    Yes*
  • macOS*
    Supported
    Yes*
  • Linux*
    Supported
    Yes*

Interface languages

  • English*
    Full audio
    Yes*
  • French*
  • Italian*
  • German*
  • Spanish - Spain*
  • Hungarian*
  • Romanian*
  • Russian*
  • Arabic*
  • Korean*
  • Simplified Chinese*
  • Japanese*
  • Polish*
  • Portuguese - Brazil*

Audio languages

  • English*
  • Portuguese - Brazil*

Game features

  • Single-player*
  • Steam Achievements*
  • Steam Cloud*
  • Family Sharing*

Store genres

  • Adventure*
  • Indie*

Screenshots

Screenshot 1 from Gibbous – A Cthulhu Adventure
Screenshot 2 from Gibbous – A Cthulhu Adventure
Screenshot 3 from Gibbous – A Cthulhu Adventure

* Provisional data