The title says it all, added in a steam achievement for hidden skulls and added in new logic and fx for the skulls when collecting and loading.
Added Steam achievement for hidden skulls
Build and release context
Steam update times within 24 hours of this post. Matching dates do not confirm which build it describes.
Build 19521173 · public branch
Steam updated · First observed
Build 19521173 · experimental branch
Steam updated · First observed