Lost Museum -Kaigami Tsuisoutan- is set for a summer 2027 release on Nintendo Switch 2 and PC via Steam, with the price still undecided. Happinet is running a daily character reveal campaign on X ahead of a playable demo at Tokyo Game Show 2026.
Happinet announced Lost Museum -Kaigami Tsuisoutan- on September 3, 2026, with a summer 2027 release planned for Nintendo Switch 2 and PC via Steam. The price is undecided. The publisher opened a teaser site, a Steam store page, and released a teaser trailer. The title is part of the Happinet Indie Collection label.
The game is a point-and-click adventure set in the otherworldly Lost Museum. Beings called Kaigami, born from the feelings and memories of paintings, live there. Protagonist Vince is a boy searching for his missing older brother. He obtains a magic pen and interacts with the Kaigami to recover their lost memories. Gameplay has three elements: exploration, Kaigami appraisal, and memory restoration. The scenario is written by Rika Suzuki, known for Another Code: Two Memories. Announced Kaigami include Novi of '???', Sunny of 'Sunflowers', Madame of 'Mona Lisa', Ryu of 'The Great Wave off Kanagawa', and Nephia of 'Water Lilies'.
Since the announcement, Happinet has kept the character introductions coming. Sunny, the Kaigami born from the painting Himawari, was introduced on the official X account on September 6, 2026. Reactions to the design and personality included 'can't wait to meet' and 'too beautiful'. That reveal is part of a daily character campaign that has not yet addressed the question mark over Novi's origin.
A playable demo will be at the Happinet booth during Tokyo Game Show 2026, held at Makuhari Messe from September 17 to 21. That demo is the next scheduled look at how the exploration, appraisal, and memory restoration systems work.
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Happinet's upcoming adventure game Lost Museum -Kaigami Tsuisoutan- introduced its character Sunny, the kaigami born from the painting Himawari, on the official X account on September 6. Sunny's design and personality drew reactions like "can't wait to meet" and "too beautiful," as the game is set for a summer 2027 release on Nintendo Switch 2 and Steam.
Happinet announced on September 3, 2026 that the new adventure game 'Lost Museum -Kaigami Tsuisoutan-' will launch in summer 2027 for Nintendo Switch 2 and PC via Steam. The price is undecided. Along with the announcement, the publisher opened a teaser site, a Steam store page, and released a teaser trailer. The title is part of the 'Happinet Indie Collection' label. The game is a point-and-click adventure set in the otherworldly Lost Museum, where beings called Kaigami, born from the feelings and memories of paintings, live. Protagonist Vince, a boy searching for his missing older brother, obtains a magic pen and interacts with the Kaigami to recover their lost memories. Gameplay has three elements: exploration, Kaigami appraisal, and memory restoration. The scenario is written by Rika Suzuki, known for 'Another Code: Two Memories'. The announced Kaigami include Novi of '???', Sunny of 'Sunflowers', Madame of 'Mona Lisa', Ryu of 'The Great Wave off Kanagawa', and Nephia of 'Water Lilies'. A playable demo will be at the Happinet booth during Tokyo Game Show 2026, held at Makuhari Messe from September 17 to 21.