Moomin: Midsummer Madness
Midsummer is right around the corner in Moominvalley, when a sudden flood sets the Moomins adrift! Join Tove Jansson’s beloved Moominfamily and friends on an adventure of mirth and mischief aboard a mysterious floating theatre.
Last Updated: 6/8/2026
| Developer | Crossbridge Game Studios |
| Publisher | Shochiku |
| Steam App Id | 4463520 |
Moomin: Midsummer Madness
Midsummer is right around the corner in Moominvalley, when a sudden flood sets the Moomins adrift! Join Tove Jansson’s beloved Moominfamily and friends on an adventure of mirth and mischief aboard a mysterious floating theatre.
Last Updated: 6/8/2026
- Windows
- Mac
- Linux
About Moomin: Midsummer Madness
Moomin: Midsummer Madness is an Adventure, Indie, and Casual game developed by Crossbridge Game Studios. It was released on the Steam Store by Shochiku.
It can be played and ran on Windows systems. At the moment, there is no confirmed information regarding Steam Deck support for this game.
According to Steam’s category system, Moomin: Midsummer Madness supports the following features:
- Single-player
- Full controller support
- Steam Achievements
- Family Sharing
Media & Sceenshots
Watch the featured video for Moomin: Midsummer Madness and see the latest screenshots from the Steam Store.
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Features & Categories
Frequently Asked Questions
Soures & References
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Moomin: Midsummer Madness data has been sourced from:
- Valve Corporation. (2026, June 8). Moomin: Midsummer Madness on Steam. Steam Store.
- Valve Corporation. (2026, June 8). Moomin: Midsummer Madness. Steam Community Hub.
- Crossbridge Game Studios. (2026, June 6). Moomin: Midsummer Madness. Moomin: Midsummer Madness.