Moss: The Forgotten Relic

Puzzle· Exploration· 3D Platformer· Puzzle Platformer

Released Jul 2026

Moss: The Forgotten Relic is an emotional and atmospheric adventure set in the pages of a living storybook, brimming with myth and ancient magic. Guide a tiny but determined hero on a heartfelt journey of challenge, courage, and connection.

91% positive · 434 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 12 Oct 2026 Lowest $15.99 $19.99 −20% Green Man Gaming Steam key Updated 12 Oct 2026 $17.99 $19.99 −10%

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Evaluation

Moss: The Forgotten Relic launched on July 16, 2026 as a complete, definitive package combining the original Moss, Moss: Book II, and the Twilight Garden DLC into a single reimagined PC adventure. After launch, the team shipped two bug-fix patches and then, on September 3, 2026, released a free "Play Together Update" adding local co-op support alongside quality-of-life improvements. On September 22, 2026, Polyarc posted a direct statement to the community confirming that "active development at Polyarc is winding down." The post states that the studio will keep its existing games available but acknowledges that "the ability to provide ongoing updates and support will be more limited going forward." This is a clear signal that no further meaningful content development is planned for the game. The post does not announce any upcoming expansions, DLC, or content updates — it is a farewell to active development. The game is complete as of the September 3, 2026 Play Together Update, which appears to be the last substantive content Polyarc shipped before announcing the wind-down of active development.

Evidence

Polyarc posted a community update stating that 'active development at Polyarc is winding down' and that the ability to provide ongoing updates and support will be more limited going forward. No future content announced.

news post · Sep 22, 2026 source development ending

high

Free 'Play Together Update' released, adding two-player local co-op and quality-of-life improvements. Described as the most recent substantive update to the game.

news post · Sep 3, 2026 source content shipped

high

Content

1 of 1 released · no outstanding content

Released

Moss: The Forgotten Relic Soundtrack

Jul 2026

Media

Details

Developer

Polyarc

Publisher

Polyarc

Achievements

Platform

Windows

Controller

full support

Steam Deck

Verified

Players

Single-player · Multiplayer · Co-op · Local/Split Screen

Exploration 3D Platformer Puzzle Platformer Puzzle Platformer Action-Adventure Female Protagonist Action 3D Cute Third Person Story Rich Adventure Fantasy Atmospheric

About this game

Journey through the pages of a living fable.

Moss: The Forgotten Relic is an emotional and atmospheric adventure set in the pages of a living storybook, brimming with myth and ancient magic. Guide a tiny but determined hero on a heartfelt journey of challenge, courage, and connection.

Traverse a fallen kingdom, solve environmental puzzles woven into the landscape, and embark on a timeless adventure…

Moss: The Forgotten Relic unites the beloved and critically-acclaimed Moss and Moss: Book II into a definitive singular adventure, beautifully enhanced and reimagined for its debut on PC.

Explore a Fallen Kingdom

Venture through a mythic land marked by the ruins of a ancient realm slowly being reclaimed by an enduring and untamed nature.

Guide an Unlikely Hero

Form a powerful bond with Quill, a small and courageous mouse who looks to you for guidance, protection, and trust at every step of her journey.

Embark on a Timeless Tale

Uncover hidden secrets, navigate puzzling places, and confront arcane forces in an intimate and epic fable inspired by classic fantasy adventures.

Optional Local Co-Op

Play together as Quill and the Reader, each using a separate controller

Additional Features

Explore a fallen kingdom slowly reclaimed by nature
Guide a tiny hero through mysterious places and towering dangers
Solve handcrafted, diorama-like environmental puzzles
Discover hidden secrets and surprises off the beaten path
Face arcane threats with optional “skip combat” accessibility
Uncover the epic and heartfelt tale of a hero who needs you
Thoughtfully designed and lovingly crafted by a small team
Critically acclaimed with over 160 awards and nominations
Orchestral soundtrack by acclaimed composer Jason Graves

Reimagined as the Definitive Adventure

Moss: The Forgotten Relic brings Moss and Moss: Book II together as one complete, enhanced experience debuting on PC first time. New features include: