Blizzard kicked off 2017 by letting players return once more to the world of the original Diablo with the "Darkening of Tristram" event in Diablo 3. They promised that it would return and, sure enough, the cultists have already appeared and the portal will open this evening.
Starting around 7:00 PM EST tonight on the PC, PlayStation 4, and Xbox One versions of Diablo 3, you'll be able to enter the portal that will take you back to the pixelated days of Diablo. Battle you way through 16 floors of the original Tristram cathedral, fight the Butcher, and bring down Diablo. If you do all that using a new, level one character, then you'll be able to get some sweet loot in the form of a Butcher pet. Of course, if you participated in the event last year, there may not be quite as many new things this time around, but it does look like there might be a different banner reward and transmogrification recipes.
The event is available until the end of the month, January 30, so you've got plenty of time to hop in and play before Old Tristram fades once more into the mists of time...