100% of Japanese online game developers are using generative AI, JOGA report finds

Every single Japanese online game developer polled by Japan's Online Game Association is using generative AI — that's the headline finding from JOGA's 2026 Online Game Market Research Report, produced alongside Kadokawa ASCII Laboratories and previewed by Famitsu.

Google Gemini leads the pack with a 94% adoption rate among those developers, followed by Anthropic's Claude at 84% and Microsoft's GitHub Copilot at 76%. The most common use cases aren't art generation or voice acting — they're "user preference analysis" and "user behavior prediction", which puts the bulk of this AI usage firmly in the data analytics column rather than the creative pipeline. Players surveyed in the same report flagged copyright infringement as their top concern, with a close second being the fear that games will start looking and feeling identical as AI homogenizes design decisions.

The 100% figure sounds alarming but comes with an important asterisk: this survey covers online game developers specifically, not the full Japanese games industry. That said, the trend line is steep. A 2025 Tokyo Game Show industry survey — covering both online and offline game makers — found 50% of developers already using generative AI, so adoption has clearly accelerated hard in the online segment. The tools dominating here are general-purpose LLMs like Gemini and Claude rather than purpose-built game-dev AI, which aligns with what studios like Capcom have said publicly — that AI is helping with analysis and workflow, while creative work stays human-led. Sony echoed similar sentiments in a recent investor presentation.

The contrast with Western developers remains sharp. Studios like Adhoc Studios have explicitly rejected generative AI use, and the broader Western dev community is far more cautious. Japan and South Korea are moving faster and with less internal resistance — though as this report shows, player skepticism exists there too, even if it hasn't translated into the kind of review-bombing backlash seen on English-language platforms.