UnrealDB is an innovative catalog dedicated to preserving and expanding the library of Unreal Engine package files, particularly for the Unreal and Unreal Tournament series. This platform facilitates the inspection of package imports and exports, ensuring that users can complete their collections by identifying and locating missing dependencies. Currently in active development, UnrealDB is available for public use as an early preview, allowing users to contribute their package files while benefiting from a dynamic database that tracks package GUIDs and hashes for accurate dependency management.

UnrealDB focuses on several key features, including the ability to connect to a parent catalog for inventory management, controlled file transfers, and public downloads through established mirrors. The project's goals emphasize file preservation, verification, and library repair, positioning it as an essential resource for gamers and developers alike. While the project is not seeking monetary donations, it encourages contributions in the form of storage hardware, enhancing the reliability and redundancy of its growing collection. Users can help shape the future of Unreal file preservation through collaboration and sharing.