Diablo 3 players can revisit the original dungeons of Diablo starting today. As part of Blizzard’s 20-year anniversary event for the classic dungeon crawler, players can experience The Darkening of Tristram, a recreation of the original Diablo’s hellish Cathedral in Diablo 3: Reaper of Souls.

The Darkening of Tristram event, which was announced at last year’s BlizzCon, sends players back in time to battle classic versions of Diablo and enemies like The Butcher. Players will be able to earn new loot, achievements and other rewards as part of The Darkening of Tristram. Blizzard developed a special graphics filter that it dubbed “RetroVision” to give Diablo 3 a more pixelated look for the event, which is only available to play in the month of January.

For a look at what’s included in The Darkening of Tristram, check out Blizzard’s preview video.

The anniversary event is now available on the Mac, PlayStation 4, Windows PC and Xbox One versions of Diablo 3: Reaper of Souls. It arrives alongside patch 2.4.3, which brings with it a host of quality of life improvements, gameplay tweaks and new items.

For a full list of changes included in patch 2.4.3, check out Blizzard’s patch notes at the official Diablo website.

Source: Polygon