# 1.2.4. Epic Subsystem

Epic Online Subsystem is an advanced framework based on Unreal Engine that provides developers with powerful tools to collaborate, modularize, and scale up their products easily. This system enables developers to connect various technologies easily and quickly, making their products more flexible and compatible with Epic products and other third-party services. Additionally, we leverage Epic Game Services to connect sessions, our internal networking system, and lobby services, which are submodules of Epic Online Services. The combination of these two powerful frameworks and our core system allows us to expand and improve our products, enabling us to react quickly to new integrations and collaborations.

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