Radio Kaikan launches Steins;Gate RE:BOOT summer collaboration event

Akihabara Radio Kaikan has launched a new summer collaboration with Steins;Gate RE:BOOT. which will run from July 20 until August 31, 2026. Throughout the campaign, the building will be decorated with characters and artwork from the upcoming game.

The collaboration began on July 20 with a special ceremony celebrating the 12th anniversary of the renewed Akihabara Radio Kaikan building. The event was held on the building’s rooftop and featured Haruko Momoi, the voice of Faris NyanNyan, as a special guest.

秋葉原ラジオ会館
　✕ STEINS;GATE RE:BOOT
本日よりコラボスタート！

本日開催の秋葉原ラジオ会館屋上にて
リニューアル12周年セレモニーは、
フェイリス・ニャンニャン役の
桃井はるこさんをゲストにお迎えして
お送りします！
参加整理券は終了しておりますが、… pic.twitter.com/tE2VtCsnZm
— 科学アドベンチャーシリーズ公式│「STEINS;GATE RE:BOOT」8/20発売⚙ (@kagakuadv) July 20, 2026

本日、秋葉原ラジオ会館にて開催の
CELEBRATION OF 12th ANNIVERSARY
ご来場いただきましてありがとうございました❣️

久々のラジオ会館屋上、バルーンリリース素敵な光景でした☺️

次回モモーイライブは、7/25(土)ワンマンライブ覚醒〜言霊ノ儀、共鳴シ捧グ〜大阪公演です‼️ pic.twitter.com/WggiJbMsra
— 桃井はるこSTAFFアカウント (@momoi_info) July 20, 2026

Following the ceremony, the Science Adventure series’ official account thanked the many visitors who attended and shared photographs from the event. The celebration also included Radio Kaikan’s traditional rooftop balloon release, which the account described as an annual summer sight. Momoi’s staff similarly thanked attendees and described the balloon release from the Radio Kaikan rooftop as a wonderful scene.

Additional activities are planned for the end of August. A special Steins;Gate RE:BOOT event commemorating the game’s release will be held in the first-floor entrance space of Akihabara Radio Kaikan on August 29 and 30. The announcement has not yet revealed further details about what the event will include.

A lottery campaign will also give visitors the opportunity to win Steins;Gate RE:BOOT merchandise and other prizes. Customers will receive one lottery entry for every ¥3,000 spent using qualifying receipts, with receipts from different stores permitted to be combined. Lottery tickets will be distributed from August 21 through August 30.

As always we will strive to keep you updated on all Steins;Gate related news. For more Steins;Gate RE:BOOT news you can check our dedicated category.