A launch event for the new game “Moomin: Summer Festival in Moominvalley”—inspired by Tove Jansson’s novels—is coming: “Let’s Play Together! ‘Moomin: Summer Festival in Moominvalley’ Launch Celebration Experience Plaza at Cocoon City”!
For two days, November 21 and 22, 2026, the Omotenashi Plaza on the 1st floor of Cocoon 2 at Cocoon City in Saitama will feature a game demo area, photo spots, an in-venue stamp rally, and a coloring area.
・The event will take place over two days, November 21 and 22, 2026, at Omotenashi Plaza on the 1st floor of Cocoon 2 in Cocoon City
・Admission is free, and the event will feature a game demo area, photo spots, and a coloring area
・Collect stamps from three locations inside the venue to receive a limited-edition original sticker
・The game is scheduled for release on November 12 for PC (Steam), Nintendo Switch, and Nintendo Switch 2
Details on “Moomin Valley Summer Festival: Experience Plaza at Cocoon City”
An interactive event where visitors can experience the world of the new game “Moomin: Moomin Valley Summer Festival,” released by Shochiku Games, in person will be held at Cocoon City in Saitama. The venue will feature a variety of activities, including a game demo area, photo spots, and an in-venue stamp rally, and admission is free.
The event is designed to be enjoyable for a wide range of people—from Moomin fans to those who don’t usually play games, as well as families.
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™Game Demo Corner
A game demo area where you can actually play “Moomin: Midsummer Madness in Moominvalley” is now open! Each demo session lasts approximately 10 minutes per person.
During peak times, we may distribute numbered tickets, and depending on the situation, registration for demos may close early.
Interactive Display Panels
Interactive display panels will be on view, allowing visitors to explore the game’s highlights while interacting with colorful, hand-drawn graphics inspired by Tove Jansson’s illustrations.
Photo Spots
A photo spot featuring character panels will also be set up in a space designed to evoke the game’s world.
Stamp Rally
A stamp rally will be held throughout Cocoon City. Collect all the stamps located at three spots inside the venue to receive an “original sticker” as a gift.
Stickers are limited to one per person per day, and since quantities are limited, the giveaway will end once they run out.
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™| Stamp Booklet Distribution Locations | Cocoon 2, 1st Floor, Omotenashi Plaza |
|---|---|
| Stamp Locations (3 locations total) | Cocoon 1, East Wing, 1st Floor: In front of Kinokuniya Bookstore Cocoon 1, North Wing, 2nd Floor: Inside the Moomin Shop Casual Edition Cocoon 1, East Wing, 2nd Floor: Inside MOVIX Saitama |
| Reward Distribution Location (Finish Line) | Cocoon 2, 1st Floor, Omotenashi Plaza |
| Reward | Original Sticker (Limited Quantity) |
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™Coloring Plaza
A coloring area where you can freely color your very own Moomin Valley will also be available. Please note that the images shown are for illustrative purposes only, and the placement of logos and other details may differ slightly from the final distribution data.
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™Special Promotion at Yodobashi Camera
To coincide with the event, a special promotion and sale for “Moomin: Summer Festival in Moominvalley” will be held at the “Yodobashi Camera Multimedia Saitama Shintoshin Ekimae Store” on B1F of Cocoon 3. After enjoying the game at the experience area, you can purchase it right there in the store.
About “Moomin: Summer Festival in Moominvalley”
“Moomin: Summer Festival in Moominvalley” is a point-and-click adventure game inspired by Tove Jansson’s novels. It is scheduled for release on November 12, 2026, for PC (Steam), Nintendo Switch, and Nintendo Switch 2.
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™The story begins one day when Moomintroll was anxiously waiting for Snufkin, who had not returned from his travels. Moominvalley was suddenly struck by a massive flood, and the Moomin family, drifting on the water, found themselves at a mysterious theater filled with costumes, scripts, and the unique “magic” of the stage.
This game features numerous iconic scenes faithfully recreated with deep love and respect for the original works, as well as all-new original adventures.
“Moomin Valley Summer Festival: Experience Plaza in Cocoon City” starts November 21!
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™| Event Dates | November 21–22, 2026 |
|---|---|
| Event Hours | 11:00 a.m.–6:00 p.m. |
| Venue | Cocoon City Cocoon 2, 1st Floor, Omotenashi Plaza (4-263-1 Yoshiki-cho, Omiya-ku, Saitama City, Saitama Prefecture) |
| Admission Fee | Free |
| Official Website | Game Official Website Cocoon City Event Page |
Frequently Asked Questions about “Moomin Valley Summer Festival: Experience Plaza in Cocoon City”
When is the event held?
The event will be held over two days, November 21 and 22, 2026, from 11:00 a.m. to 6:00 p.m.
Where is the venue?
It is located at Omotenashi Plaza on the 1st floor of Cocoon 2 in Cocoon City (4-263-1 Yoshiki-cho, Omiya-ku, Saitama City, Saitama Prefecture).
Is there an admission fee?
Admission is free.
How long can I play each game?
Each session lasts approximately 10 minutes per person. During peak times, we may distribute numbered tickets, and registration may close early depending on the situation.
What are the rewards for the stamp rally?
If you collect all three stamps from locations inside the venue, you’ll receive an original sticker. Only one sticker per person per day will be distributed, and since quantities are limited, the offer ends when supplies run out.
When is the game’s release date, and which platforms will it be available on?
It is scheduled for release on November 12, 2026, for PC (Steam), Nintendo Switch, and Nintendo Switch 2.
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Please check the official website for details.
*Please note that the information in this article may be out of date; please check the official website for the latest details.
Moomin: Midsummer Madness. Developed by Crossbridge Game Studios SASU. Published by Shochiku Co., Ltd. © Moomin Characters™
