At Label 619, comics are the central focus of the authors' work, but many other cultural products—such as tattoos, collectible figurines, and even music and film—also revolve around the same themes and characters. Run, a key figure at the label, insists that these extensions are not seen as "derivative products," but as natural expansions of the creative worlds they originate from. He explains, "I never think in terms of 'derivative products.' What interests me most is publishing universes rich enough to exist on different supports." Since 2020, the label has worked with musicians to create soundtracks that accompany the reading of its comic albums. Artists such as The Toxic Avenger, Sticky Boys, and Kemberlee have contributed to these projects. Soundtracks for Carbone & Silicium and Silent Jenny were released digitally and on vinyl, featuring beautiful covers. For the series Bayou Bastardise, twelve tracks were composed with a variety of artists, including Haitian rapper Kemberlee, Vilaine Panthers, Arnaud Fradin, and Jessica Dallas. The upcoming title Enfants Perdus by Neyef will also feature an original soundtrack available on vinyl. Run emphasizes that these musical collaborations are not simply to accompany comics, but to deepen and extend the same imaginative world. When it comes to video games, Run says, "It is a medium that attracts me a lot. It is another way of storytelling, but especially a way of actively inhabiting a universe rather than just passing through it as a reader." Several authors from Label 619, such as Mathieu Bablet, Guillaume Singelin, and Simon Hutt, have worked on video game projects, though not necessarily as part of the label itself. Another example of transmedia storytelling from Run is the animated film adaptation of his series Mutafukaz, which was co-produced with Shōjirō Nishimi from the Japanese studio Studio 4°C. The film was released in 2017 and produced by Ankama Animations. Although it had a limited theatrical release and received mixed reviews, it was recognized at the 2018 Gérardmer International Fantastic Film Festival, where it won the Young Jury Prize and the Best Original Music Prize. It was also selected for the Official Selection of the Annecy International Film Festival in 2017 and nominated for Best Independent Animated Feature at the 46th Annie Awards in 2019. Run's characters have also become collectible figurines. A previous example was the Angelino statue included in the collector's Blu-Ray package of the film. Currently, fans can acquire figurines of Angelino and Vinz with interchangeable accessories. PVC injection figurines in a 1/12 scale were created through a successful Kickstarter campaign, raising over 140,000 euros from more than 1,000 contributors. The project, in collaboration with the French brand Turbokid, has led to the creation of two new figurines based on the heroes of Dark Meat City, which are now available for pre-order on the Turbokid website.