A metaverse that once lived only inside an anime movie is about to open for real. To celebrate the theatrical release of Hateshinaki Scarlet(果てしなきスカーレット) and the 15th anniversary of Summer Wars, Studio Chizu is building an official OZ-inspired world and game on Roblox, the massive social platform with over 150 million daily users. Scheduled for a global rollout in early 2026, this new experience will let fans step into OZ with their own avatars and explore connections between Scarlet, Summer Wars, and the rest of Mamoru Hosoda’s films—all from anywhere in the world.
Summer Wars’ OZ heads to Roblox as a global virtual world in 2026
Studio Chizu has announced a new Roblox project that turns the virtual network OZ from Summer Wars into a playable, fan-focused world. Built on Roblox’s social, user-generated platform, the experience is planned for a global launch in early 2026 to coincide with the wider release of Hateshinaki Scarlet(果てしなきスカーレット) outside Japan.
In the original film, OZ is a bright, swirling online metropolis where people handle everything from games and chats to business and government services through their avatars. Now, Roblox—which already hosts millions of interconnected 3D experiences—is becoming a real-world counterpart to that idea, letting anime fans explore a space inspired by the movie’s virtual city.
Connecting Scarlet, Summer Wars, and every Mamoru Hosoda film in one space
This Roblox world isn’t just a nostalgia trip for Summer Wars fans. Studio Chizu describes it as a space where all of Mamoru Hosoda’s films connect through OZ, including the new feature Scarlet as well as earlier works like The Girl Who Leapt Through Time and Belle. The project is designed as a crossroad where different eras of his storytelling meet.
Scarlet follows a medieval princess on a time-bending quest for revenge after her father is murdered, pushing her into strange realms that blur the line between life and death. Linking that journey back into OZ gives Studio Chizu a way to tie together Hosoda’s recurring themes—digital worlds, alternate realities, and the bonds that keep people moving forward, even in the middle of chaos.


What fans can explore inside the Roblox OZ world with their own avatars
In the new experience, players will log into Roblox and enter an OZ-inspired hub using their usual avatars. From there, they’ll be able to wander through familiar Summer Wars-style vistas, meet fans from around the globe in real time, and jump into mini-games or zones themed after different Hosoda films.
The studio teases environments and motifs drawn from Summer Wars, Scarlet, and other titles, so you can expect nods to iconic scenes, characters, and symbols scattered across the map. Because it’s built on Roblox, the OZ world can evolve over time with updates and events rather than disappearing after a short promotion. Even if most on-screen text ends up in Japanese, movement and interaction should stay intuitive enough that international fans can enjoy the space together.
Release timing, platforms, and where to follow official Scarlet updates
The Roblox OZ experience is scheduled to go live in early 2026, timed with the international rollout of Scarlet after its Japanese theatrical premiere on November 21, 2025. Exact dates and gameplay details will be announced closer to launch.
To keep up with news, Studio Chizu recommends following their official channels:
・Scarlet movie site: Scarlet official site
・Studio Chizu JP site: Studio Chizu official site (JP)
・Studio Chizu EN site: Studio Chizu official site (EN)
・Social media: Studio Chizu on X, Instagram, Facebook
A teaser for Scarlet is already available here: Watch the Scarlet trailer on YouTube. It’s a good way to feel the new film’s darker fantasy tone before you step back into OZ on Roblox.
Why launching OZ on Roblox matters for anime and metaverse fandom
Summer Wars imagined a world where a colorful online network quietly ran everything in the background of daily life. Roblox, meanwhile, has grown into one of the largest real platforms where people—especially younger generations—play, hang out, and create together in shared 3D spaces. Bringing OZ onto Roblox closes the loop in a playful way: a fictional metaverse, born in a 2009 movie, re-emerges inside a real 2026 platform.
For anime fans, it’s a rare chance to step into a setting they’ve only ever watched on screen. For Studio Chizu, it’s a way to keep Hosoda’s stories alive between theatrical releases and invite new audiences in through games and social play instead of only movie tickets. If the project grows alongside Scarlet and future films, OZ on Roblox could become a long-running home base for Hosoda’s worlds.
Getting ready for the Scarlet era if you play on Roblox
Until Studio Chizu reveals more concrete gameplay details, getting ready for OZ on Roblox is pretty simple. Make sure you have a Roblox account on your platform of choice, and keep an eye on the Scarlet site and Studio Chizu’s social feeds for launch dates and event news. Rewatching Summer Wars—and maybe Belle—is also highly recommended to refresh Hosoda’s take on virtual communities before you dive into another one.
When OZ finally lands on Roblox in 2026, you won’t just be watching Mamoru Hosoda’s worlds—you’ll be walking through them. Set up your Roblox account, follow Studio Chizu’s official channels, and get ready to log in the moment OZ opens its gates. The Scarlet era is almost here. 🌐✨
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