Solo dev updates Japanese card battler with Apple and Google sign-in

M OFFICE released version 1.0.4 of Onmyo Gogyo: Survival Burst, adding Apple and Google account sign-in, new boss skills and bug fixes to the free iOS and Android card game. The update also expands the game’s story-mode progression as the solo developer pushes a Japan-themed title aimed at players outside Japan.

Why it matters: - The update lowers friction for new players by adding Apple and Google sign-in alongside email. - The new boss skill system and stage-by-stage enemy HP changes make story battles less predictable. - The game’s short, 10-turn matches are designed for quick play sessions on mobile. - The title is available in English, Japanese and Simplified Chinese, which broadens its potential audience beyond Japan.

What happened: - M OFFICE released version 1.0.4 of Onmyo Gogyo: Survival Burst for iOS and Android. - The game is a free card battler built by solo developer Makoto Okutsu in Otsu, Shiga, Japan. - The update adds sign-in with Apple and Google accounts. - The update also adds unique skills for every story boss. - Enemy HP now changes from stage to stage in story mode. - A Start Battle button was added to the top of the stage screen. - Bug fixes now carry guest-play progress over after account creation. - The PC version through Google Play Games also gets a screen-display fix.

The details: - Onmyo Gogyo: Survival Burst uses the Five Elements system: Wood, Fire, Earth, Metal and Water. - A card wins a clash when its element beats the opponent’s element, even if the card’s raw power is lower. - Each turn randomly shifts the field into Yin or Yang, which changes card strength. - Each match lasts 10 turns. - Story mode includes historical and mythological figures such as Himiko and Prince Shotoku. - The game launched worldwide on October 8, 2026. - The full game pages and press materials are available through the official site, along with an App Store listing, Google Play listing, press kit and X account. - M OFFICE says video streaming and monetized videos of the game are welcome without permission.

Between the lines: - The update suggests the studio is trying to remove onboarding friction while making story battles more distinctive. - A solo developer adding account sign-in and platform fixes signals an effort to support live operations after launch, not just ship a one-time release. - The Japanese history-and-myth theme may help the game stand out in a crowded mobile card-game market, especially for players outside Japan.

What's next: - Okutsu said he wants to hear how players outside Japan respond to the game’s historical and mythological content. - Further updates are likely as M OFFICE continues live operation for the game. - The studio is also encouraging creators to stream and monetize videos of the game without permission.

The bottom line: - Onmyo Gogyo: Survival Burst is moving from launch novelty to longer-term support, with easier account access, more varied story battles and a clearer push for international players.