A modder managed to bring the old Warcraft 3 eul map into Dota 2's Source engine. Dota modder Arsjac has ported eul 3.76d, one of the very early Dota maps in Warcraft 3, into Dota 2.

It's been tough to wrangle enough players to get a full game of Blizzard's new DOTA map going on the show floor so far, but we've had plenty of time to get familiar with the character selection ...

To provide a spot of background, the first incarnation of DotA popped up sometime in 2003. It was a Warcraft III map a guy named Eul built on the bones of custom Starcraft map called Aeon of Strife.