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ArcGIS Maps SDKs for Unity and Unreal Engine enable game engine developers to use real-world data and geospatial analytics from the ArcGIS system when creating interactive, immersive, and photo-realistic 3D and XR experiences.  

The ArcGIS Maps SDK for Game Engines beta program is closed.  Production releases of ArcGIS Maps SDK for Unity and ArcGIS Maps SDK for Unreal Engine are now available.

Product downloads and documentation are available at the following locations: 
ArcGIS Maps SDK for Unity: https://developers.arcgis.com/unity/ 
ArcGIS Maps SDK for Unreal Engine: https://developers.arcgis.com/unreal-engine/

See the launch blog posts (Unity, Unreal Engine) for more details. If you have been using the pre-release version, please see the release notes for the final versions.

Please direct questions to the Esri Community.