After nearly nine years of having limited modding support, The Witcher 3 is about to receive its first full-fledged mod tools. This comes several months after developer CD Projekt Red announced it would be working on expanding The Witcher 3’s modding capacity.

CDPR announced the move today and aims to bring the new REDKit modding tools to players on May 21. The REDKit set of tools is based on the game’s Red Engine, which also powered previous titles in the series, as well as Cyberpunk 2077. The developer is moving away from using the proprietary engine in favor of Epic Games’ Unreal Engine, which aims to significantly cut down on development time. The Witcher 3 has had modding tools since its early days, though they were limited in scope and had little access to the deeper parts of the game’s inner workings—all of which should be alleviated with the new REDKit.