Brennan Lee Mulligan, the famous Dungeon Master of Dimension 20, has been a big part of geek culture and tabletop role-playing games (TTRPGs) for a long time. Mulligan is known for his comedy, creativity, and unforgettable stories. He has a loyal fan base thanks to his work on Dropout.tv, where he was a key part of hit shows like Game Changer and Make Some Noise. But on July 15, 2025, Mulligan shocked the TTRPG and Dropout communities by announcing in a dramatic way that he was leaving the platform. What’s the twist? He said he was leaving to follow a completely unexpected career path: making custom shoes for American Girl dolls.
In this blog, we’ll look more closely at Mulligan’s viral announcement, the funny parts of it, the reactions from fans, and what might happen next for this beloved storyteller.
The Viral Announcement – A Funny Way to Leave
Brennan Lee Mulligan made a shocking announcement on July 15, 2025, in a video that was part of a special episode of Game Changer Shorts called “Fool’s Gold.” Mulligan dramatically said in the video, “Effective immediately, I will no longer be with Dropout.tv.” He also said that there was no bad blood or drama behind his choice. Mulligan joked that he was now focusing on making custom shoes for American Girl dolls, something he had just recently become interested in.
The announcement wasn’t just a simple message; it was a funny sketch. Mulligan made fun of the current shoes for American Girl dolls by pointing out how they are historically inaccurate and poorly made. Mulligan joked that he would be better at making smaller shoes and that his work would be better than Daniel Day-Lewis’s when he left Dropout. He compared his decision to leave Dropout to Day-Lewis’s retirement.
This funny departure set the stage for what would become a viral moment, making it hard to tell what was real and what was fake.
The Making of the Fake Website – Click
To make the joke even funnier, Dropout made a website called brennansamericangirldollshoes.com to promote Mulligan’s supposed new business. The site had fake testimonials, made-up shoe designs, and the slogan “I’m better at making shoes than you are at anything.” The website made things even more confusing, and some fans began to wonder if Mulligan really did leave Dropout.
Dropout’s ability to mix comedy with reality proved precisely by the creation of the website. It turned a fun announcement of a departure into an interactive and memorable experience for fans.
Fans’ Reactions – Confusion and Recognition
The video quickly went viral on sites like Reddit, TikTok, and Instagram, where it sparked a lot of conversation. Some fans were confused and didn’t know if Mulligan was really leaving Dropout. Some people who were familiar with Dropout’s humour and Mulligan’s style of comedy quickly saw that it was a parody. Mulligan’s use of dramatic, almost melodramatic tones made things even more confusing and made it even harder to tell what was real and what was made up.
Fans loved how funny the announcement was and how well Mulligan timed it, which made the whole thing even more ridiculous. A lot of fans also joked that Mulligan had taught a masterclass in digital satire, tricking even the most devoted fans.
To be clear – It was all a joke.
Many people thought Mulligan was really leaving Dropout after the dramatic announcement, but entertainment news outlets quickly confirmed that it was all part of the joke. The video was made to make it hard to tell what’s real and what’s not, and Mulligan didn’t really leave Dropout. He is still an important part of Dimension 20 and other Dropout projects that are still going on.
Brennan Lee Mulligan – A Cultural Force at Dropout
Brennan Lee Mulligan’s time at Dropout has been nothing short of legendary. He has been a significant figure in the world of tabletop role-playing games since he joined in 2017. Mulligan is the creator and regular game master for Dimension 20. He has run campaigns like Fantasy High, The Unsleeping City, and Crown of Candy that have gotten a lot of attention. These campaigns have taken the TTRPG genre to new heights by combining deep character development with emotional storytelling and chaotic humour.
Mulligan’s work in sketch comedy (with CollegeHumor) and at New York’s Magnet Theatre has given him a unique mix of performance skill and emotional intelligence that he brings to Dimension 20. Fans love him for his ability to write captivating narratives and make people feel things deeply. This has changed the way people think about and enjoy TTRPGs.
A Career After Dropout – What Could Happen Next
Brennan Lee Mulligan’s leaving Dropout is made up, but it makes you think about what he might do next. Mulligan had been saying for years that he wants to work on creative projects outside of Dimension 20 and Dropout. Could we see him try his hand at other types of entertainment? There are so many options:
- Could a Dimension 20 campaign be turned into a Netflix series? With how popular actual-play content is, a good adaptation could be a huge hit.
- Mulligan’s experience as a storyteller could easily be used in the world of literature. Mulligan is great at making interesting, detailed worlds, so a fantasy book by him could be a big hit.
- Solo Podcast: Mulligan could start a solo podcast where he talks about the details of storytelling, world-building, and the creative process behind Dimension 20. He knows a lot about game theory and narrative craft.
- A Long Vacation: Mulligan could also take a long break from the DM screen after years of hard work building worlds and a busy schedule. This would give him time to rest and come up with new creative ideas.
A Google Easter Egg for Brennan Lee Mulligan
Google added an Easter egg in Mulligan’s honour as a fitting tribute. When people look for “Brennan Lee Mulligan,” they see a goodbye message and an animated blue heart rising from the bottom of the screen. When you click on the blue heart, shoe emojis fall from the sky, which is a funny reference to Mulligan’s joke about American Girl doll shoes. Sam Reich, the host of Game Changer and owner of Dropout, shared this Easter egg with a lot of people and told them to check it out.
This Google Easter egg is just one example of how Mulligan’s impact has gone beyond the TTRPG and Dropout communities, leaving a lasting mark on both fans and creators.
A Legacy That Will Last – How It Affects TTRPG Culture
Brennan Lee Mulligan’s legacy in the TTRPG world is already set in stone, no matter what he does next. His work on Dimension 20 has changed how people play and enjoy tabletop role-playing games, raising the bar for storytelling and character development in the genre. Mulligan has shown that TTRPGs can be more than just games; they can be a way to tell stories, a way to grow as a person, and a way to look at complicated feelings.
Mulligan’s influence would last for years, even if he stopped playing Dropout or took a break from TTRPGs. His work has inspired many people to try tabletop games and has helped make the genre more popular.
In conclusion, this is not the end, but an evolution.
Brennan Lee Mulligan’s announcement might have been a joke, but it reminded everyone how important he is to geek culture and the TTRPG community. His funny exit from Dropout is an excellent instance of the mix of humour and sincerity that has made him so popular. Mulligan’s legacy as a storyteller will live on, whether he stays at Dropout or starts fresh endeavours. It will inspire future creators and fans. There is no question that he has changed the world of tabletop role-playing games, and as long as he keeps telling stories, there will always be room for one more adventure.
Final Review
Brennan Lee Mulligan has had a huge impact on TTRPG culture. His funny announcement, which made it hard to tell what was real and what was made up, only made fans love him more. Mulligan’s stories will stay with people for a long time, whether he’s making shoes for American Girl dolls or operating a new Dimension 20 campaign.
