Kazuhide Oka is a developer working with KAMITSUBAKI STUDIO on the ANMC music x indie game project, which released Platonica Space on Steam and Nintendo Switch in August 2026. He is also developing the 3D adventure Quiet Express Room 909, shown at BitSummit PUNCH in May 2026.
Kazuhide Oka's recent work centers on Platonica Space, an SF adventure from the ANMC project with KAMITSUBAKI STUDIO. The game launched on Steam on August 14, 2026, at 1,200 yen with a 17% discount until August 27. The Nintendo Switch version followed on August 27 at the same price, with a discount until September 9. A Steam demo covering Episode 1 arrived on the same day as the Switch release.
Platonica Space follows five amnesiacs exploring an endless room-filled space, recovering fragmented memories through memory spots. The story involves sorting whose memories are whose, a theme reflected in the game's title. The rapid rollout, with the Switch version arriving less than two weeks after the Steam launch, gave the project a quick multi-platform presence.
Separately, Oka is working on Quiet Express Room 909, a 3D adventure set on a cross-continent train. Shown at BitSummit PUNCH in May 2026, the game has players explore cars, talk to passengers, and relive a seven-day journey to prevent a derailment. The demo ends with a time loop reveal. Oka cited Blue Prince and Road 96 as influences. The project marks his first 3D adventure, a shift from his earlier narrative-driven indie games like Natsu no Kanata and Moonless Moon.
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KAMITSUBAKI STUDIO and Kazuhide Oka's music x indie game project ANMC released the Nintendo Switch version of the SF adventure Platonica Space on August 27, 2026. The regular price of 1200 yen is 996 yen until September 9. A Steam demo covering Episode 1 also launched today.
KAMITSUBAKI STUDIO and Kazuhide Oka's ANMC project released the Steam version of Platonica Space on August 14, 2026, priced at 1,200 yen with a 17% discount until August 27. The Switch version launches August 27 at the same price, with a discount until September 9. The game follows five amnesiacs exploring an endless room-filled space, recovering fragmented memories through memory spots.
At BitSummit PUNCH, developer Kazuhide Oka showed Quiet Express Room 909, a 3D adventure game set on a cross-continent train. Players explore cars, talk to passengers, and relive a seven-day journey to prevent a derailment. The demo ends with a time loop reveal. Oka cited Blue Prince and Road 96 as influences.