
Screenshots

Watch trailer on Steam ↗Nocturnomaly
SignalMutex · Published by SignalMutex
Positive — 100% positive (12 reviews) · 36 achievements
Last updated 28 Sept 2026
You're heading home from school. Something feels off. Observe your surroundings carefully to escape the endless street.
£3.39
Lowest price we've ever recorded
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Price history
Adventure, Indie, Casual · 2025 · More under £5 games
Navigate through uncanny hallways as you piece together clues to leave Nocturnomaly. An unsettling casual adventure from SignalMutex, where every step could lead to the unknown.
About this game
A creepy looping street where each pass has a chance to have an audiovisual anomaly. Players must decide to go forward if they haven't spotted, or go back if they have spotted an anomaly in the current pass. After 9 correct guesses in a row player wins the game.
Each anomaly is strange, sometimes bizarre, sometimes scary. Wrong enough to make your skin crawl.
Miss one, and you're back to the beginning.
With randomized anomalies each run, every playthrough feels different.
Controls:
W/A/S/D = move
Shift = run
Space = jump
Playtime (each playthrough):
15-60 minutes
Final words from the developer:
This game was made with love. I created it because I genuinely enjoy anomaly detection walking simulators. The Exit 8 and Shinkansen 0 were major inspirations, and I wanted to build something in that spirit.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows 10 64-bit
- Processor: Intel Core i3-4000 series or equivalent
- Memory: 4 GB RAM
- Graphics: Nvidia GTX 750 Ti or AMD Radeon HD 7850
- DirectX: Version 11
- Storage: 2 GB available space
- Sound Card: DirectX compatible
Recommended
- Requires a 64-bit processor and operating system
Supported Languages
Latest news
Patch NotesOfficial
Nocturnomaly Update - What's New [Version 1.0.1]
Hello Nocturnomaly players!I'm excited to bring you the latest update 1.0.1. Here's what's new:Brightness slider added to the main menu and pause menuAchievements added for all anomalies (obtained when you correctly guess that there was an anomaly in the loop)Fixed the problem where the floating car anomaly doesn't reset for the next loopThank you for playing and supporting Nocturnomaly. I hope you enjoy the new changes!If you have any feedback or issues, please let me know in the community hub.Happy anomaly hunting!- SignalMutexRead full article on Community Announcements (signalmutex)AnnouncementsOfficial
NOCTURNOMALY - Return from school! Dark street... Anomalies. Horror.
Developer plays the gameRead full article on Community Announcements (signalmutex)






