Moss: The Forgotten Relic

A puzzle platformer about guiding a mouse through a fallen kingdom

Polyarc, Blackbird Interactive · Published by Polyarc · Released Jul 16, 2026

Reviews: Very Positive; 91% of 440
Recent reviews: Very Positive; 82% of 51 in 30 days
Players: 15; daily peak, Oct 28, 2026
Steam Deck: Verified
Last update on Steam: 2 weeks ago; Oct 13, 2026
Minimum PC: GeForce GTX 1070; 8 GB RAM · 15 GB disk; Full requirements

What is Moss: The Forgotten Relic ?

This third-person adventure combines Moss and Moss: Book II into one journey through a storybook kingdom reclaimed by nature. You guide Quill, a mouse, through ruins, solve environmental puzzles, and confront magical threats. Optional local co-op splits the roles of Quill and the Reader between two players, each using a separate controller.

For you if...

+you enjoy searching for secrets off the main path
+you want to skip combat and concentrate on puzzles

Not for you if...

−you prefer open-ended play to a story-driven adventure

What players say

91% of 440 reviews are positive · 82% of 51 in the last 30 days

Players praise Quill, the story, and the artwork. The most common complaints concern camera angles that make jumps difficult to judge, while some players also find movement clunky and the route forward unclear.

Screenshots and trailer

Moss: The Forgotten Relic system requirements

Minimum: GeForce GTX 1070, 8 GB RAM, 15 GB of disk space.

As published by the developer.

Can my PC run Moss: The Forgotten Relic ?

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Minimum

OS: Windows 10 (64-bit)
Processor: Intel Core i7-4790 / AMD Ryzen 5 1500X or better
Graphics: Nvidia GeForce GTX 1070 8GB / AMD RX Vega 56 8GB or better
Memory: 8 GB RAM
Storage: 15000 MB available space

Does Moss: The Forgotten Relic have co-op or multiplayer?

Yes: co-op split-screen. It also has a single-player mode. With Remote Play Together, one copy is enough to play the local modes online with friends.

Does Moss: The Forgotten Relic run on Steam Deck?

Verified Yes, Verified by Valve: it works on Steam Deck out of the box.

All functionality is accessible with the default controller configuration
Shows Steam Deck controller icons
In-game text is legible on Steam Deck
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 46
Steam features: Cloud saves, Family Sharing
Languages: Full audio: English, French, German, Japanese, Simplified Chinese, Traditional Chinese. Text only: Italian, Spanish - Spain, Korean, Portuguese - Brazil.

Does Moss: The Forgotten Relic 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