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Platonica Space

Platonica Space is a sci-fi adventure from KAMITSUBAKI STUDIO's ANMC project, with Kazuhide Oka as a key creator. It launched on Steam on August 14, 2026, and on Nintendo Switch on August 27, 2026. The game is available at a discounted price on both platforms until early September.

Synthesized from 3 Yomimono stories · updated 2d ago

Platonica Space is a sci-fi adventure from the ANMC project, a collaboration between KAMITSUBAKI STUDIO and Kazuhide Oka. The game launched on Steam on August 14, 2026, with a 17% discount until August 27. The Nintendo Switch version followed on August 27, 2026, priced at 1,200 yen, with a discounted price of 996 yen until September 9. A Steam demo covering Episode 1 launched on the same day as the Switch release.

The game follows five amnesiacs exploring an endless room-filled space, recovering fragmented memories through memory spots. The memory-tracing system was conceived by 3D modeler Kataura Moe. In a roundtable with KAI-YOU, Oka said the theme of Platonic Space, that people cannot understand each other yet can live together, continues the ground of his earlier work Moonless Moon. The memory-tracing system is built so that recovering memories makes differences between characters sharper, not softer.

Insert songs include 'Nemuru Sora' by KAIRUI, sung by somunia, and 'Goodnight Healer' by Nagase Yuka. The game's release across Steam and Switch within two weeks gives it a rapid multi-platform rollout from the ANMC project.

Key facts

Platforms and launch dates
Steam on August 14, 2026; Nintendo Switch on August 27, 2026.
Price
1,200 yen on both platforms, with a discount to 996 yen on Switch until September 9.
Steam demo
A demo covering Episode 1 launched on Steam on August 28, 2026.
Premise
Five amnesiacs explore an endless room-filled space, recovering fragmented memories through memory spots.
Theme
People cannot understand each other yet can live together, continuing the ground of Kazuhide Oka's earlier work Moonless Moon.
Memory-tracing system designer
Conceived by 3D modeler Kataura Moe.
Insert songs
'Nemuru Sora' by KAIRUI, sung by somunia, and 'Goodnight Healer' by Nagase Yuka.

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Noted
theme that people cannot understand each other yet can live together · 2026-09-02
Release
game · 2026-08-27 · Nintendo Switch · 2026-08-28
Release
game · 2026-08-28 · Steam demo · 2026-08-28
Release
game · 2026-08-14 · Steam · 2026-08-14
Release
game · 2026-08-27 · Switch · 2026-08-14

Connections

Directs of
kazuhide oka

Structured graph also available as JSON at /public/entities/platonica-space. CC BY 4.0.

All coverage

Sep 2

Platonic Space Creators on Why People Cannot Understand Each Other

KAI-YOU's roundtable with Kazuhide Oka, KAIRUI, and somunia covers Platonic Space, the sci-fi adventure from KAMITSUBAKI STUDIO's ANMC project. Oka says the theme, that people cannot understand each other yet can live together, continues the ground of his earlier work Moonless Moon. The memory-tracing system came from 3D modeler Kataura Moe. Insert songs include 'Nemuru Sora' by KAIRUI sung by somunia and 'Goodnight Healer' by Nagase Yuka.

Aug 14

SF Adventure Platonica Space Launches on Steam, Switch Version Set for August 27

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.