room6's publishing lineup includes the action game Thunder of the DemonKing and the puzzle adventure UNDERGROUNDED, which launched on Steam on July 3, 2026. The studio is also showing the Nintendo Switch adventure Kitsune to Kaeru no Tabi: Adashino-shima no Kotoro Oni, which is due in the first half of 2027 and carries a prologue sequence.
room6's recent work spans three tracks: publishing titles from other developers, showing its own Switch adventure, and taking part in regional indie development conversations. In June, along with Game Studio, it said the puzzle adventure UNDERGROUNDED would launch on Steam on July 3, 2026 for 2,480 yen. The game follows Scott in Manhattan after a rejected marriage proposal, and its dungeons use American historical eras as themes while boss fights use retro arcade games. A 25-track soundtrack was announced for the same day at 980 yen, with a bundle planned.
The studio's Switch title, Kitsune to Kaeru no Tabi: Adashino-shima no Kotoro Oni, was playable at Tokyo Game Show 2026 and is due in the first half of 2027. The demo shown there added a prologue showing how the fox girl and her frog companion reach Adashino Island, running from the fox's apartment through a convenience store errand, a shrine theft, a culvert, and a boat ride. Developer Rias said at the show that the project has taken nearly ten years including the concept stage, and that directing has been a new experience.
The publishing side added Thunder of the DemonKing, developed by GoatGoatStudio, at BitSummit PUNCH. The defense action game was playable at the booth with two stages of the latest build.
Masafumi Kimura of room6 also appeared on a panel at the Osaka Indie Games Summit 2026 on October 3, discussing how new game IP can emerge from the Kinki region.
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5d ago
A public session at OSAKA INDIE GAMES SUMMIT 2026 on October 3 gathered six committee members from developers and universities across the Kinki region to discuss how new game IP can emerge from the area. Speakers included room6's Masafumi Kimura, HexaDrive's Masakazu Matsushita, PLAYISM's Shunji Mizutani, Skeleton Crew Studio's Masahiko Murakami, Osaka Electro-Communication University's Son Yongyong, and Directors Unib's Koya Yokota.
Sep 21
At Tokyo Game Show 2026, 4Gamer interviewed Rias, the developer of Kitsune to Kaeru no Tabi: Adashino-shima no Kotoro Oni, shown at the room6 booth for Nintendo Switch. Rias said the project has taken nearly ten years including the concept stage, spoke about the demo's added opening and the Kaeru Shuran meal scene, and said directing has been a new experience for them.
Sep 18
At Tokyo Game Show 2026, room6 showed a playable demo of Kitsune to Kaeru no Tabi: Adashino-jima no Kotoro Oni, the Nintendo Switch adventure game due in the first half of 2027. The updated demo adds a prologue showing how the fox girl and her frog companion reach Adashino Island, starting in the fox's apartment and running through a convenience store errand, a shrine theft, a culvert, and a boat ride.
Jun 26
room6 and Game Studio announced that the puzzle adventure game UNDERGROUNDED will launch on Steam on July 3, 2026, priced at 2,480 yen. The game follows Scott, a young man in Manhattan whose marriage proposal is rejected. He drops the engagement ring into a gutter and descends into a labyrinth beneath the city that condenses American history and culture. Players explore dungeons themed around the film industry, space development, the Wild West, and more. A cheerful canary companion offers hints when players are stuck. Bosses appear in the depths, and defeating them requires playing retro arcade games that pay homage to 1980s classics. Clearing these games alters the labyrinth and opens paths to victory. Scott also meets other characters who have lost something; helping them recover their lost items changes his own story. A soundtrack with 25 tracks inspired by 1960s and 1980s music will release on the same day for 980 yen, and a bundle set is planned. A demo is currently available on Steam.
May 27
At BitSummit PUNCH, room6 announced that the defense action game Thunder of the DemonKing, developed by GoatGoatStudio, has joined its publishing lineup. The game, which has been gaining attention through event demos and a Steam demo, was playable at the booth with two stages of the latest build. Players control a revived Demon King using lightning magic to fend off invading soldiers.