We love Blizzard's popular game, Diablo. We love it so much, in fact, that we're willing to spend our precious time developing a free and open source solution for those wanting to play it on a modern computer.
Short answer, yes. We don't distribute any copyrighted game assets, which means you'll need to have a copy of Diablo to be able to play.
Someone made an irc channel on freenode, and some people actually joined, which is always good.
Anyway, #freeablo on irc.freenode.net. Here’s a webchat link if you want: http://webchat.freenode.net?channels=%23freeablo