Moomintroll has woken up too early, and the rest of Moominvalley is still asleep. That lonely start is the heart of Moomintroll: Winter’s Warmth, which arrived on PlayStation 5 on September 18. Hyper Games’ puzzle adventure had already reached PC and Nintendo Switch earlier in 2026, but the new launch gives PlayStation players their first trip into this frozen version of the valley.

The goal sounds simple: bring back spring, wake the family and reunite with Snufkin. Getting there means exploring the snow-covered valley, solving environmental puzzles and meeting characters who handle winter very differently from Moomintroll. The tone is cozy, but it is not afraid of quiet or melancholy. This is a small hero learning that he can be brave before everything feels safe again.

Moomintroll stands with familiar Moominvalley characters beneath a green aurora.
The new story brings familiar Moominvalley faces into Moomintroll’s winter journey. · Credit: Hyper Games / Kakehashi Games

A world painted like a Moomin storybook

Hyper Games says the art mixes 3D forms with hand-painted 2D elements to imitate watercolor spreading imperfectly across paper. The result avoids the hard edges of a typical 3D platform game. Trees, furniture and distant scenery look as if they belong on an illustrated page, while Moomintroll can still move through the world and interact with it.

The team also hid references to Tove Jansson’s drawings and characters around the game. A carpet in the Moominhouse includes the Ancestor and Hattifatteners, while a familiar red chair and an X-ray in Moomintroll’s room reward fans who look closely. Too-Ticky is part of the journey as well, giving the game another direct connection to Jansson’s life and stories.

Moomintroll and a companion cross a moonlit snowy forest in the watercolor-style game.
The painted world mixes warmth and melancholy as Moomintroll searches for spring. · Credit: Hyper Games / Kakehashi Games

The snow is more than scenery

The winter landscape is not just a painted background. Hyper Games built a deformable layer that reacts when characters walk through it. Footsteps leave paths, soft piles shift, and Moomintroll can push through drifts that feel heavier than the flat scenery around them. That moving snow makes the valley feel cold and physical without breaking the storybook look.

Moomintroll walks through a pale winter landscape as morning light reaches the snow.
The adventure turns bringing back spring into a quiet puzzle-filled journey. · Credit: Hyper Games / Kakehashi Games

The game follows Snufkin: Melody of Moominvalley, but it changes both the season and the lead character. Players do not need to treat this as another springtime musical adventure. Winter’s Warmth is built around Moomintroll’s point of view: waking alone, missing his best friend and slowly finding warmth in a valley that looks empty at first.

Moomintroll leaves a trail through thick snow in a clear overhead gameplay screenshot.
The snow responds to movement instead of behaving like a flat painted floor. · Credit: Hyper Games / Kakehashi Games

The September 18 release applies to the PS5 version highlighted by PlayStation. The PC edition remains listed on Steam, and other platform availability should be checked in the relevant regional store. What matters creatively is the same on every version: the snow, the silence and the familiar characters all serve one gentle story about bringing life back to Moominvalley.