DevilutionX is an open-source reverse-engineered remake of Blizzard's classic dungeon crawler Diablo and its expansion Hellfire, targeting modern platforms including PC. The project aims to preserve and improve the original experience while keeping gameplay faithful to the source material.
A new commit (b85bc285) has landed in the repository, continuing active development on the project. If you have been sleeping on this one, now is a good time to check it out.