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Nintendo will issue new community tournament guidelines that impose age, revenue, and hardware regulations.
Among the changes, tournaments may include up to 200 in-person and 300 online competitors.
Nintendo, in part, said, "The total value of cash prizing a single organiser can offer through Community Tournaments in a 12-month period must be no more than the equivalent of £9,000 / €10,000."
Additionally, the Mario maker explained, "[The] use of game consoles, accessories, and software not licensed by Nintendo" violates regulations.
This point drew criticism as social media users expressed that accessible controllers for disabled gamers are third-party accessories.
Nintendo doesn't make an accessible controller of its own, but it does have an officially licensed third-party option in Hori's Flex controller for the Switch.
The community tournament guidelines will be effective November 15.
Read more on gamesindustry.biz