Level Streaming Manager (LSM) - dynamically loads and unloads Sublevels, Level Instances, and their Proxy counterparts based on any tracked Actor - players, AI, vehicles. Powered by MassEntity for maximum performance, scalable to hundreds of streaming zones. Multiplayer-ready and fully Blueprint-exposed.

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CHANGELOG 15.10.2026

• Trackers can now attach to any SceneComponent - previously limited to ActorComponent, now you can stream levels around sockets, sub-components, or nested scene hierarchies.

• Proxy Sublevels & Proxy Level Instances - keep lightweight proxy levels loaded at distance and swap in detailed content when a tracked Actor gets close. Reduces memory usage and eliminates visible popping.