Unity and Epic Partner to Bring Unity Games Into Fortnite

Unity developers will be able to publish their games inside Fortnite starting next year, following a new partnership announced at Unite 2025. Unity CEO Matt Bromberg invited Epic Games founder Tim Sweeney onstage to confirm the collaboration, giving Unity creators access to Fortnite’s large platform and creator economy.

The integration allows developers to push Unity-built projects directly into Fortnite, which now has more than 500M registered accounts. The agreement also arrives as Epic expands Fortnite from a battle royale title into a broad user-generated content platform. 

Sweeney stated that independent creators already drive a significant portion of engagement, with 40% of playtime coming from third-party experiences.

Unity-Epic Partnership Expands Access to Fortnite’s Creator Ecosystem

The companies said the initiative is designed to reduce friction caused by fragmented development tools and publishing paths. As part of the partnership, Unity will bring its in-app purchase SDK to Unreal Engine (UE) developers, giving them the option to use Unity’s APIs for cross-platform payments, entitlements, and pricing systems.

Meanwhile, Sweeney called the move valuable as mobile platforms begin supporting alternative payment methods, adding that both companies aim to build an “open metaverse” that is accessible across engines.

Epic positioned the collaboration as a step toward making Fortnite an interoperable ecosystem, rather than an Unreal-exclusive environment. Sweeney said the long-term vision is an “open metaverse economy that supports all users and all engines.”

Omdia principal analyst Liam Deane noted that Unity and Epic appear less focused on engine-to-engine competition and more on their larger commercial goals, including Unity’s monetization business and Epic’s expanding UGC network. He warned that reduced rivalry may impact developers, arguing that past competition pushed both engines to improve their tools rapidly.

The partnership positions Fortnite as an even larger hub for independent creators while giving Unity developers access to one of the industry’s most active digital ecosystems.