Nine Worlds is a "large fan-run multi-genre geek event in London" modeled on "US sci-fi cons like Dragon Con and GenCon and SDCC." Their goal is to "about fan-led events, and having conversations with creators (writers, directors), rather than focusing on merch and celeb signings. " Some "GeekFest Tracks are being run as mini-cons in their own right."

"Diversity and inclusion are important foundations for the event we want to create, wide ranging in not only scope of content, but in attendance. Specifically, we're aiming to dump the sexism that infests many geek spaces and sci-fi cons. We've got a strong anti-harassment policy and we'll work hard to make Nine Worlds a safe space for women, LGBT+ people, people with access issues, and other groups that are often marginalised at geek/fandom events."

In addition, "All proceeds from the Nine Worlds convention will go to our charity partner English PEN, a charity that supports persecuted writers around the world and is the UK's oldest human rights organisation. None of the Nine Worlds organising team are being paid for their work."