A surprising amount of fanfiction is written for organized community events — gift exchanges, challenges, and fests where writers commit to producing work to a prompt or a deadline. Understanding these events explains a lot of the tags you'll see and points you toward some of the most polished fic on the archive.
Here are the main types of event and what they produce.
Gift exchanges
In an exchange, participants submit requests and are matched with another person, then write a fic to their match's prompt. The most famous is Yuletide, a huge annual exchange focused on small and rare fandoms, held around the winter holidays.
Exchange fics are tagged as gifts and often dedicated to a specific recipient. They're a great way to find fic in tiny fandoms that otherwise get little attention.
Big Bangs and fests
A Big Bang is a challenge where authors commit to writing a long fic (often 10,000+ words) on a schedule, frequently paired with an artist who creates accompanying fanart. Fests and weeks are themed events — a ship week, a trope fest — where the community posts work around a shared topic over a set period.
These events reliably produce ambitious, finished, well-edited fic, because the structure pushes writers to plan and complete their work.
Frequently Asked Questions
What is Yuletide?
A long-running annual fanfiction gift exchange focused on rare and small fandoms, held around the winter holidays. Writers are matched to recipients and write to their requests — it's one of fandom's biggest organized events.
What is a Big Bang in fandom?
A collaborative challenge where writers produce a long fic to a deadline, usually paired with an artist who makes fanart for it. The name comes from the minimum word count that makes a fic 'big.'
How do I find exchange fics?
Many exchanges have their own AO3 collection. You can also look for gift fics and event tags, or browse the collection page for a specific exchange like Yuletide.