The Tenth Mosaic Game Festival Announces Full Program With Rez, Indie Showcase
The event's structure, where most programming is accessible with a single 2,000 yen general admission ticket, signals a deliberate move toward a broad public festival rather than a niche industry talk event.
Key Facts
- The Tenth Mosaic runs September 22 and 23, 2026, at the Institut francais du Japon - Tokyo in Shinjuku, Tokyo, from 10:00 to 20:30.
- General admission tickets cost 2,000 yen per day, while creator talk sessions require a separate 3,000 yen ticket.
- Shuhei Yoshida curates the Indie Legacy Showcase, featuring more than 15 Japanese indie titles including Cave Story, La-Mulana, and Exit 8.
- The Rez 25th anniversary session on September 22 includes Tetsuya Mizuguchi, director Jun Kobayashi, music producer Ken Ishii, and music coordinator Masakazu Hiroishi.
- The Dream Machines exhibition will display rare hardware including the Panasonic M2 and the Teradrive co-developed by Sega and IBM.
Reporting from 2 sources: GameBusiness.jp, Game Spark.
The Institut francais du Japon - Tokyo will host The Tenth Mosaic, a two-day game culture festival, on September 22 and 23, 2026. The event goes beyond previously announced talk sessions by Yoko Taro, Ueda Fumito, and Mizuguchi Tetsuya, adding game music performances, hardware exhibitions, a curated indie game showcase, and live drawing. A Rez 25th anniversary session will feature Mizuguchi, director Jun Kobayashi, music producer Ken Ishii, and music coordinator Masakazu Hiroishi. Former Sony Interactive Entertainment executive Shuhei Yoshida curates the Indie Legacy Showcase, presenting more than 15 Japanese indie titles including Cave Story, La-Mulana, and Exit 8. The Dream Machines exhibition will display rare hardware such as the Panasonic M2 and the Sega-IBM co-developed Teradrive. Music acts include Saori Kobayashi performing Panzer Dragoon pieces, Yuzo Koshiro, and an Enemy Zero acoustic live. General admission costs 2,000 yen per day, granting access to exhibitions, music, the indie showcase, and live drawing. Creator talks require separate 3,000 yen tickets.
Both days run from 10:00 to 20:30 at the Institut francais du Japon - Tokyo in Shinjuku's Ichigaya Funagawaramachi district, and both September 22 and 23 are national holidays in 2026. Ticket sales run through thetenthmosaic.peatix.com, with the event's official site at thetenthmosaic.jp.
The Rez 25th anniversary session on September 22 starts at 17:00 with Mizuguchi lecturing on the 2001 title's origins, design philosophy, and development stories before the talk with director Jun Kobayashi, techno DJ and producer Ken Ishii, and music coordinator Masakazu Hiroishi. A playable Rez corner will be set up at the venue, and KO-Ney follows at 19:30 with a "Rez 25th Anniversary Live" combining talk, game, and music.
The Indie Legacy Showcase's roundtables, both on September 23 with Yoshida as MC, split the featured developers. The 12:00 Part 1 pairs La-Mulana's Takumi Naramura, PICO PARK's Shunsuke Miyake, and Sakuna: Of Rice and Ruin's Naru. The 15:30 Part 2 brings Yona of Dareka no Tame ni and Namitakahashi of Ooo. The showcase's more than 15 titles also include Ender Lilies and Sakuna: Of Rice and Ruin.
Beyond the Panasonic M2 and Sega-IBM Teradrive, the Dream Machines exhibition covers microcomputers, 8-bit consoles, 3D-era hardware, and handhelds, with exhibits tied to Eric Chahi of Another World and Frederic Raynal of Alone in the Dark, plus Mathieu Bablet's Cairn art and sketches and materials marking 30 years since Enemy Zero's release. Illustrator Katsuya Terada draws live across both days.
The music schedule is set hourly: September 22 runs yusuke3rd, DHY, hally (VORC), Saori Kobayashi, then KO-Ney. September 23 runs yusuke3rd, the Enemy Zero acoustic live with Shono Isomura and Kumi Tanioka, Yusaku Kato, Yuzo Koshiro, and KO-Ney's Game Medley.
Synthesized by Yomimono from the 2 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.