Stars Reach studio Playable Worlds recently discussed the MMO's simulation and its impact on engine customization and hosting.
The game is built on the Unity engine, but the backend systems use custom or third-party tools to manage gameplay and support a scalable, persistent simulation.
Worlds in Stars Reach are hosted on virtual machines using Amazon Web Services, allowing for dynamic cloud-based systems that can be influenced by player activity.
A modding API is planned for Stars Reach, but API access won't be available until after the early access launch.