Mattel Expands Collaboration with Roblox to Bring New Slate of Games to the Platform, Launching with Monster High Experience October 24

EL SEGUNDO, Calif – WEBWIRE – Thursday, October 16, 2025

Mattel, Inc. (NASDAQ: MAT), a leading global toy and family entertainment company and owner of one of the most iconic brand portfolios in the world,and Roblox Corporation (NYSE: RBLX),an immersive gamingandcreation platform,today announced an expanded collaborationtointroduce a series of new Robloxtitles inspired bysome ofMattels most celebrated brands.

Watch the Monster High Roblox trailer HERE

Monster High,Mattelspremier self-publishedRobloxexperience,debutsOctober 24. Fans can step inside the haunted halls of Monster High like never beforecustomizing their petCreepanions, crafting powerful elixirs in Frankie Steins Alchemy Lab, and joiningClawdeenWolfs pack to fuel the legendaryGhoulstoneforfang-tasticrewards. Featuring iconic characters, endless style options, and secrets lurking beneath the school,the experienceinvites players to team up, show their claws, and discover that monster magic never goes out of style.

Building on the global success of Monster High,the No. 4 doll brandworldwide*,the franchise now translates its signature play patterns intoRobloxsinteractive digital world.Additionalexperiences will follow, bringing beloved franchises like Barbie, Hot Wheels, Masters of the Universe, UNO, and more to life through a dynamic lineup of standalone Mattel games on Roblox.

Additionally,asfirst announcedat the 2025 Roblox Developers Conference(RDC),Polly PocketandStreet Sharksarenow availableon the Roblox License Manager and Licenses catalog,with Matchboxand Rock Em Sock EmRobots coming soon.Thisprogram enables IP holders to bring theirpropertiesinto immersive digital play atscale,givingRobloxdevelopers accessto officially licensed assets for gameplay and fan creations.

Ron Friedman, Vice President,Mattel Future Lab, said:Roblox is one of todays most imaginative platforms, and this collaboration opensnew ways for fans to experience Mattels brands.Werestarting with Monster High, with more standaloneexperiences andengagement through the License Manager to follow. Together,werecreating worlds that seamlessly bridge physical and digital play.

Stephanie Latham,Vice Presidentof Global Brand Partnerships & Advertising, Roblox, added: At Roblox, we help brands spark connections with their communities through imaginative, immersive opportunities. With Mattel bringing iconic properties like Monster High, Barbie, Hot Wheels, and Polly Pocket to the platform through custom experiences, our License Manager, and more, fans now have fresh ways to play, explore, and engage with the stories they loveproving how brands can reach next-generation audiences in meaningful and innovative ways.

With eight decades of storytelling and cultural resonance, Mattels IP brings instantfamiliarity thatdeepensfan engagement while enhancing the richness of Robloxs creative ecosystem. Mattel has already proven its strength on Roblox, partnering withGamefamto launch BarbieDreamHouseTycoon in 2023. The experience quickly became a topperformer on Roblox, reaching close to 500 million visits.

Todays announcementunderscores Mattels commitment toextendingphysical play to the virtual world by creating digital games and experiences that drive sustained engagement among fans of all ages.The companyhas a robust slate ofstandalone gamesandintegrationsacross mobile, console, PC,and in-carplatforms.

*Source: Circana, LLC, Retail Tracking Service, G10 (US, CA, BR, MX, AU, DE, FR, IT, SP, UK), DollsSupercategory, Projected USD, Jan – Dec 2024

About Mattel

Mattel is a leading global toy and family entertainment company and owner of one of the most iconic brand portfolios in the world. We engage consumers and fans through our franchise brands, including Barbie, Hot Wheels, Fisher-Price, American Girl, Thomas & Friends, UNO, Masters of the Universe, Matchbox, Monster High, Polly Pocket, and Barney, as well as other popular properties that we own or license in partnership with global entertainment companies. Our offerings include toys, content, consumer products, digital and live experiences.Our products are sold in collaboration with the worlds leading retail and ecommerce companies.Since its founding in 1945, Mattelisproud to be a trusted partner in empowering generations to explore the wonder of childhood and reach their full potential. Visit us at mattel.com.

About Roblox

Roblox is an immersive gaming and creation platform that offers people millions of ways to be together, inviting its community to explore, create, and share endless unique experiences.

Robloxs vision is to reimagine the way people come togetherin a worldthatssafe, civil, and optimistic.To achieve this vision, Roblox is building an innovative company that, together with the community, has the ability to strengthen the social fabric and support economic growth for people around the world.

Formoreabout Roblox, please visit corp.roblox.com.

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