Insomnis: Long Night Edition
PC Game

Insomnis: Long Night Edition

Adventure Indie 5 views Updated Aug 26, 2026
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Game Overview

Insomnis is a psychological horror adventure set within the eerie, ever-shifting walls of the abandoned Castevet manor. Players step into the shoes of Joe Castevet, the grandson of the late Roman Castevet, a renowned English scientist whose mysterious life and death leave behind a house full of dark secrets. As Joe explores the decaying mansion, the environment itself seems to turn against him—rooms rearrange, shadows twist, and nightmarish visions emerge, creating an unsettling atmosphere thick with tension and dread. The game’s narrative unfolds through exploration and discovery, weaving a morally complex story where every choice carries weight and shapes the fate of the characters, leading to multiple possible endings. Gameplay in Insomnis blends atmospheric storytelling with a variety of intricate puzzles that mix analogue and digital mechanics. Players must carefully investigate each room, piecing together clues to unravel the mysteries hidden in the manor’s depths. The haunting sound design and dynamic environments work hand-in-hand to heighten the sense of unease as the house grows darker with each passing hour. Developed by a Barcelona-based studio specializing in horror titles, Insomnis offers a deeply immersive experience that challenges players to confront their own fears and question reality while uncovering the truth behind the Castevet legacy.

Screenshots

System Requirements

Minimum:

  • Requires a 64-bit processor and operating system
  • OS *: Windows 7 or later
  • Processor: Intel Core i3-2100 or equivalent / AMD® FX-6300 or equivalent
  • Memory: 4 GB RAM
  • Graphics: NVIDIA® GeForce GTX 750 Ti / ATI Radeon HD 7950
  • DirectX: Version 9.0c
  • Storage: 4 GB available space
  • Sound Card: DirectX 9 sound device
  • Additional Notes: Controller support: Microsoft Xbox ® Controller for Windows®

Installation Instructions

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  2. When the transfer finishes, open the downloaded folder and review any included documentation.
  3. Run the included installer only if you trust its source, then follow the on-screen steps.
  4. Keep your operating system, graphics drivers, and security software enabled and up to date.
Security reminder: you should never need to disable your antivirus or other security protections to install software.