Start the party, the AO3 is turning 15 today! This year has been full of exciting new milestones. Our total number of users has passed 7.5 million, with the number of works on the archive surpassing 13.8 million! (with over 1.6 million of them written in languages other than English)

To celebrate AO3’s birthday, we prepared two fandom-related activities: a trivia game and a prompt challenge. You can find further details below!

Trivia Game!
How much do you know about AO3, beyond where to find your favorite works? About its history, infrastructure, or functionalities? Find out by participating in our AO3 trivia game. Who knows – you might win a cool prize!

For the next 15 days starting today, we will post a new trivia question every day (in this post and on our socials), along with a link to a Google form where you can submit your answer. We will check your submissions at the end of the 15 days, and randomly draw names from the highest scorers; they will receive AO3 merch as a prize!

• Day 1 – How many members does AO3 have (on the day of posting)? Submit your answer here!
• Day 2 – How old is the OTW, the parent organization behind AO3? Submit your answer here!
• Day 3 – What is the title of the fanwork, which currently has the most kudos on AO3? Submit your answer here!
• Day 4 – What is the most expensive donation reward for OTW donations? Submit your answer here!
• Day 5 – In what year was AO3 founded and who first proposed the idea for it? Submit your answer here!
• Day 6 – Which fanwork was bookmarked most by people last year (2023)? Submit your answer here!
• Day 7 – What are our two definitions of the word kudos? Submit your answer here!
• Day 8 – When did AO3 reach 10 million works posted on the site? Submit your answer here!
• Day 9 – The OTW (Organization for Transformative Works) is the volunteer-run parent organization behind AO3. How many volunteers does it have? Submit your answer here!
• Day 10 – What does the term “conceptual drift” mean in the context of metatags? Submit your answer here!
• Day 11 – What are three goals of the OTW Fanhackers Project? Submit your answer here!
• Day 12 – When did AO3 pass 10 million members on the site? Submit your answer here!
• Day 13 – AO3 is one of OTW’s many projects, along with Transformative Works and Cultures (TWC), a peer-reviewed journal on fanworks and practices. When does TWC publish its annual general issue? Submit your answer here!
• Day 14 – What was the first major donation brokered by the OTW Open Doors project? Submit your answer here!
• Day 15 – What is the maximum number of tags an author can add to their work? Submit your answer here!

Prompts!
As a fun challenge for fanwork creators, the AO3 Prompt game will run for 15 days alongside the trivia game. Each day, a new prompt will be posted on our socials and to the collection! Don’t worry about missing one: you can choose prompts as inspiration strikes, using as few or as many as you like. When you’re done writing, you can add your work(s) to our AO3 anniversary collection!

So make sure to keep an eye on our social media channels, where we will post every day!

Thank you for celebrating 15 years of AO3 with us!