Nintendo’s business development manager, Dan Adelman, has said he expects 20-30 indie titles to release for Wii U by the time the holidays arrive this year.

Speaking with Joystiq, Adelman said the barrage is due to the firm relaxing some the rules to become an Authorized Developer.

“Historically, Nintendo has seemed kind of hard to approach, kind of like there’s a closed system where if a developer already knows somebody at Nintendo or has some kind of ‘in,’ they’re in, but otherwise there’s no way to interface with the company,” Adelman said. “I think we’re putting a lot of effort into changing that and making ourselves more accessible, so I really want to make sure that people realize that it’s actually pretty easy now – and we’re trying to make it easier – to work with us and release games on our systems.

“Our guiding philosophy is that if you’re able to make games on Nintendo platforms, we want to help make sure that you can do that on our systems. Our primary consideration is an ability to make a game. You don’t have to have a record of published titles, or have to have worked at a large company in the past.

“If you’re actively working on a game, that should be sufficient.”

Adelman is speaking with developers at Casual Connect in San Francisco, and will be attending PAX Prime and possibly gamescom to speak with more developers later this month.