A fan of the classics? DevilutionX is a modern game engine for running Diablo and Hellfire on various systems and a big new update has rolled out. This is a community-made thing, not endorsed by Blizzard.
Just some of the upgrades available in DevilutionX compared with the original includes: gamepad support, better multiplayer, high FPS support, hardware cursor support, custom resolutions and aspect ratios and so much more. What's new in the 1.5.0 release? Quite a lot including: floating damage numbers, an option to auto pick-up oils, quest items drop based on difficulty, all quests now available in multiplayer, PvP arenas, graphics and lighting improvements, upgraded translations and lots more.
This release also includes a whole bunch of bug fixes to problems in the original game and the expansion. So it should play better than ever.
Also don't forget to check out Scaine's round-up of similar games in If You Like… Diablo.