Epic Games and Unity have partnered to allow games developed in Unity to be published and played within the Fortnite universe. This announcement was made at Unity's Unite 2025 conference by Epic's CEO, Tim Sweeney. The integration will utilize advanced network technology for seamless coexistence of Unity engine games within Fortnite, streamlining the process for developers without the need for additional software installations. Epic aims to establish Fortnite as a leading metaverse platform, competing with Roblox, and reported 100 million monthly active users, with 40% of playtime on third-party content. Unreal Engine developers will benefit from access to Unity's cross-platform commerce system, which is expected to roll out early next year.