Meridian 157: Prologue

Point-and-click mystery with room-escape puzzles on a remote island

NovaSoft Interactive Ltd. · Released Dec 9, 2020

Reviews: Very Positive; 81% of 375
Recent reviews: Not enough recent
Players: 2; daily peak, Oct 28, 2026
Steam Deck: Untested
Last update on Steam: 2 weeks ago; Oct 14, 2026
Minimum PC: Pro Iris; 2 GB RAM · 0.2 GB disk; Full requirements

What is Meridian 157: Prologue?

You play forensic meteorologist David Zander in a free adventure prologue about a weather anomaly on a northern Pacific island. You move between locations and solve puzzles to reach new areas, with hints available for difficult riddles.

For you if...

+you enjoy eerie mysteries in isolated settings

Not for you if...

−you want a complete story rather than a series introduction

What players say

81% of 375 reviews are positive

Players praise the puzzles' generally clear logic and varied difficulty. A recurring complaint is the lack of cursor feedback identifying interactive objects and routes.

Screenshots and trailer

Meridian 157: Prologue system requirements

Minimum: Pro Iris, 2 GB RAM, 0.2 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7 or higher
Processor: Dual Core with Hyper-Threading
Graphics: Intel Pro Iris Graphics
Memory: 2 GB RAM
Storage: 250 MB available space

Does Meridian 157: Prologue have co-op or multiplayer?

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

Single-player

Does Meridian 157: Prologue 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
Steam features: Family Sharing
Languages: Text only: English, French, Italian, German, Spanish - Spain, Japanese, Portuguese - Portugal, Russian, Simplified Chinese.

Does Meridian 157: Prologue 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