Celebrate Diablo’s anniversary with the annual Darkening of Tristram event

Though one can purchase the original Diablo from GOG.com, Blizzard annually indulges our nostalgia for this classic with the Darkening of Tristram event in Diablo 3, letting us chase down cultists and venture into vision of Tristram’s past.

You may already notice cultists skulking around in Adventure mode, but the event portal to Tristram is due to open on January 3 at 4 pm pacific. Both the cultists and the portal will vanish on January 31 at 4 pm pacific when both parts of the event end, giving you an entire glorious month to reap the rewards from Darkening of Tristram.

What is the Darkening of Tristram?

The Darkening of Tristram refers to the plot of Diablo 1, and during this event you’re on a journey to free the original town of Tristram from the Lord of Terror and essentially enjoying Diablo 1 recreated inside Diablo 3. Diablo and his hellish minions await you from the Cathedral, which has become a killing field in Archbishop Lazarus’ phony search for the lost Prince Albrecht. We explore the Cathedral in Act 1 of D3 to rescue Deckard Cain and defeat the Skeleton King, so this version of the Cathedral will be familiar to players both new and old.

The Darkening of Tristram comes to us via Blizzard’s RetroVision, where graphics are adjusted to resemble the original game (including retro monster models such as the Butcher). The music and UI are similarly adapted to mimic D1, to give you that full 1996 gaming experience. Basically, it’s a love letter to the game that started it all.

How do I get started?

Kicking off the anniversary event is relatively straightforward. Hunt the cultists in Adventure Mode to find clues leading you to a portal into Tristram’s past. Alternatively, navigate to The Old Ruins in Act 1 and look for the red pentagram on the map labeled “The Darkening of Tristram.”

We aren’t entirely clear on whether there are new rewards this year, but based on the images in Blizzard’s blog post it looks like we’re getting similar rewards this year, with unique banner options and portrait frames, as well as the baby Butcher pet (complete with cleaver and meat). These rewards are exclusive to the event, so you have to knock out all requirements before the portal closes on January 31.

Heed the whispers of madness, drawing you closer and closer to the dungeon that started it all. Adventure forth, brave hero, to survive and reap the rewards or die like so many forgotten souls. Join us in fighting back the hellish hordes in the Darkening of Tristram event.

Originally published December 29, 2020. Updated January 3, 2025.