Wizards of the Coast has released the 5.1 System Reference Document (basically the core rules of D&D 5e) in four new languages alongside English including Spanish, Italian, German, and French.

https://media.wizards.com/2023/downloads/dnd/SRD_CC_v5.1_FR.pdf

https://media.wizards.com/2023/downloads/dnd/SRD_CC_v5.1_IT.pdf

https://media.wizards.com/2023/downloads/dnd/SRD_CC_v5.1_DE.pdf

https://media.wizards.com/2023/downloads/dnd/SRD_CC_v5.1_ES.pdf

All of these have been released under a Creative Commons Attribution License which means creators are free to copy, modify, and use these works – including commercially – by referencing the document and it’s license in their work.

In my opinion, this is an amazing effort and one that helps Wizards of the Coast improve its reputation as a good steward of D&D and good partner of the hobby.