Red Line

A 2D horror mystery tracing tenants' secrets across different timelines

Rolling Cat Studio · Published by indienova · Released Jul 20, 2023

Reviews: Very Positive; 97% of 159
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 1 year ago; Oct 31, 2024
Minimum PC: HD 6670; 1 GB RAM · 2 GB disk; Full requirements

What is Red Line?

This episodic 2D horror game follows a girl who finds a notebook linking her to another world. You control two protagonists in a rundown apartment building, talk to residents, examine objects, and solve puzzles to unlock memories and reconstruct past events.

For you if...

+you enjoy psychological horror with a supernatural premise
+you prefer games with a short runtime

Not for you if...

−you want action-focused horror rather than investigation and dialogue

What players say

97% of 159 reviews are positive

Players praise the story, distinctive protagonists, and character art. Recurring complaints concern confusing puzzles and overly loud sound effects.

Screenshots and trailer

Red Line system requirements

Minimum: HD 6670, 1 GB RAM, 2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7, 8, 10, 32/64-bit
Processor: 1.6GHz or above
Graphics: AMD Radeon HD 6670, GeForce GTX 200 series with at least 1GB
Memory: 1024 MB RAM
Storage: 2 GB available space

Does Red Line have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Red Line run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 18
Steam features: Family Sharing
Languages: Text only: Simplified Chinese, English.

Does Red Line use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam