We started under Tristram’s cathedral. Spring 2029 is the next numbered door. Launches, expansions, and the turns that stuck.
Season 15Patch 3.2.1Updated Sept 2026
You still come for the same itch: monsters die, loot drops, and it feels earned. Thirty years on from Tristram’s cathedral, that loop has not gone soft. September 2026 is a live season, not a pause. Diablo IV is deep into its seasons; Season of Hell’s Legacy is already running. At BlizzCon 2026 Blizzard named the next numbered mainline: Diablo V, Spring 2029. Same ceremony, same stage: they said more than 130 million players worldwide have entered Sanctuary across the franchise. That figure is theirs. Below: launches, expansions, and the turns that stuck.
See also: Faces of the franchise.
The first time you heard the cathedral door scrape open, the genre already had you. Blizzard North’s original Diablo hit in late 1996: compact isometric ARPG, randomised dungeon levels, three classes (Warrior, Rogue, Sorcerer), free Battle.net multiplayer in the box. The exact retail day is still argued. Some stock histories point at 31 December 1996; broad retail reporting often lands in early January 1997. This page uses late 1996 (see footnote 3).
What stuck was simpler than the ship-day fight. Kill monsters. Watch loot drop. Go deeper. Online play was not a premium add-on. That habit outlived every art pass that followed. Under Tristram’s cathedral the Prime Evil Diablo waits imprisoned; a hero descends, and corruption usually wins.
November 1997 brought an odd cousin. Sierra On-Line published Diablo: Hellfire, developed by Synergistic Software. Authorised expansion. Not a Blizzard North project. Monk class, new dungeon material, Na-Krul side thread. Blizzard refused Battle.net support for Hellfire’s code; Blizzard North kept most of what they wanted for the sequel. Hellfire is a business and product fact. Its lore sits soft beside later Blizzard North games.
If you grew up trading rare names in a chat window, this is the one that taught you the vocabulary. Diablo II shipped in June 2000 (North American dating slips by a day across archives) and became the series’ long shadow. Five base classes: Amazon, Necromancer, Barbarian, Sorceress, Paladin. Skill trees that invited obsession. A rarity ladder of loot that taught a generation how to talk about builds. Battle.net Ladder culture, crystallising further around patch 1.10 in the 2003 era, turned seasonal resets and ladder-only economy items into a social sport as much as a solo grind.
Lord of Destruction landed 29 June 2001: Act V in the barbarian highlands, Assassin and Druid, climax at Mount Arreat. The Dark Wanderer’s trail had already run through Mephisto in Kurast and Diablo himself; Baal’s assault on the Worldstone finished the argument, and when the stone shattered later ages inherited the fracture. Decades on, Diablo II: Resurrected remastered the era for new hardware. The franchise spine was already set in 2000–2001.
Launch week felt like a queue with a price tag. Diablo III opened 15 May 2012. Classes at launch: Barbarian, Monk, Demon Hunter, Witch Doctor, Wizard. Always-online authentication. Gold and real-money Auction Houses, fatefully. Server queues and a loot economy tilted toward the AH defined the early years as hard as the campaign did.
Blizzard said it in public. The Auction House, they wrote, ultimately undermined Diablo’s core loop: kill monsters to get cool loot. Gold and real-money AH shut down 18 March 2014. A week later, 25 March 2014, Reaper of Souls landed on PC and Mac: Loot 2.0, the Crusader, Adventure Mode, a recovery arc for players who had walked away. Consoles got the Ultimate Evil Edition on 19 August 2014 for that generation’s PlayStation and Xbox hardware, without the Auction House. Campaign-side, a fallen star and the Black Soulstone’s logic led to a Prime Evil amalgamation defeated; then Malthael, Angel of Death, turned Westmarch into a graveyard and opened the door the fourth game would walk through.
Side note: Diablo Immortal, free-to-play and mobile-first, co-developed with NetEase, launched 2 June 2022. Adjacent to the numbered mainline. Not on this spine.
The pitch that stuck was darkness with room to wander. Blizzard unveiled Diablo IV at BlizzCon 2019: open regions of Sanctuary, Lilith at the centre, five launch classes previewed for a shared-world ARPG. Ship day: 6 June 2023 (“See You in Hell on June 6, 2023,” in Blizzard’s press line). From Season of the Malignant in July 2023 onward, seasons became the product’s heartbeat. New themes, resets, systems layered on the base campaign. This history keeps the launch-and-expansion spine. It does not walk every season by name.
First expansion, and the jungles felt like a different game for a night. Vessel of Hatred went live on Blizzard’s stated schedule of 7 October 2024 at 4 p.m. PDT. Nahantu. Spiritborn. Mercenaries, the Dark Citadel, Runewords, a campaign that continues after the base story. A same-evening technical delay pushed actual go-live later that night. Many non-US calendars and some marketing lines read 8 October for the same absolute window (footnote 1). Neyrelle carries Mephisto sealed in a soulstone into the jungles of Nahantu / Teganze; Hatred spreads, and the Spiritborn answers on their own terms.
Second expansion, and Mephisto finally gets the stage to himself. Lord of Hatred began rollout 27 April 2026 at 4:00 p.m. PDT per Blizzard’s prep blog: Age of Hatred climax on Skovos against Mephisto, Paladin (early unlock via pre-purchase) and Warlock at launch, plus War Plans, the Horadric Cube’s return, Talisman and sets, Echoing Hatred, and more. The same Blizzard page’s pre-purchase footer also says “available April 28, 2026,” which is why some calendars and storefronts disagree with the PDT rollout line (footnote 2). Season of Reckoning launched with the expansion. The Tower and leaderboards returned shortly after. Temis becomes the hub; Mephisto is the campaign’s final argument.
Thirty years later, the season still smells like the old cathedral. 15 September 2026, 9:30 a.m. PT, patch 3.2.1: Season of Hell’s Legacy opened as the franchise’s thirtieth-anniversary season. Still live as of 20 September 2026. Seasonal framing reaches for Deckard Cain’s lost soul, dark wanderers to redeem, and echoes of Baal, Mephisto, and Diablo, with players bearing a Splinter of a Prime Evil’s power at a cost. Seasonal content. Not a replacement for the Age of Hatred campaign spine. It is the public face of Diablo IV while the next numbered game gestates.
Blizzard announced Diablo V at the BlizzCon 2026 Opening Ceremony. Target window: Spring 2029. No month yet. The forging blog and diablo5.blizzard.com both say the game is still early. They are calling it the start of a longer conversation, with proper update posts from 2027.
In the story, Sanctuary has already lost. Diablo rules Westmarch and wants the Heavens next. You are the Heir to Westmarch, travelling with a caravan of survivors. Blizzard has mentioned a former Sister of the Sightless Eye and a Treasure Goblin in that group, plus some unexplained link between the Heir and Diablo. Classes shown so far: Demon Hunter, Monk, and Plague Knight. Loot talk is heading back toward Diablo II: stat requirements, big items that take more bag space, sets, and crafting ideas from Lord of Hatred and old Runes / Runewords. All of that is still experimental.
There was a panel the same weekend, “Diablo V: Forging the Next Era,” on Saturday 12 September 2026 at 1:45 p.m. PT.
Also announced that night: a Netflix Diablo animated series (still in development), an Amazon class pack for Diablo IV in the first half of 2027, and the Age of Hatred Collection on Switch™ 2 from 15 September 2026, the same day Hell’s Legacy started.
Fourteen faces you keep meeting whenever Sanctuary turns. Short cards. Stained-glass portraits. The long story stays in the era sections above.
Fresh meat
You hear the line before you see the cleaver. Lazarus fed townsfolk to this thing in the Tristram catacombs while Diablo recovered. Later games still drop a Butcher into your path without warning, thirty years on, and the room still goes quiet.
Son of Leoric
When Diablo could not fully take King Leoric, Lazarus drove the soulstone into Prince Albrecht’s forehead instead. The missing heir emptied Tristram of its royal line before the hero ever reached the cathedral depths.
Skeleton King
Diablo failed to possess him and left a mad king who ordered Tristram’s executions until his own knights cut him down. Hell raised him again as the Skeleton King beneath the Royal Crypts. He has been a recurring boss ever since.
Vessel of Terror
The hero who won, then made the worst possible choice. He beat Diablo under Tristram, drove the soulstone into his own forehead to hold him, and walked east as the Dark Wanderer who opens Diablo II. Later Blizzard lore names him Prince Aidan, eldest son of King Leoric.
Lord of Terror
The name on the box, and still the argument. Prime Evil sealed under Tristram’s cathedral; every numbered game has circled back to him somehow. Diablo V’s pitch is the end of the quarrel: Sanctuary has fallen, and he rules from the throne of Westmarch.
Lord of Hatred
Eldest of the Prime Evils in the classic telling, and the face of Diablo IV’s Age of Hatred. Neyrelle carries him sealed into Nahantu. Lord of Hatred puts the climax on Skovos, where Hatred finally stops travelling and stands its ground.
Lord of Destruction
Arreat, the Worldstone, and a shatter nobody has finished cleaning up. He is the Lord of Destruction expansion villain, and Season of Hell’s Legacy even stages an echo of him at the summit for players who still remember the climb.
Last of the Horadrim
Stay awhile and listen. Cain has guided heroes since Tristram, through two sequels and a bookshelf of lore, always pointing at the next horror with that dry patience. In Season of Hell’s Legacy his lost soul returns for the thirtieth anniversary, still aimed at the Prime Evils.
Archangel of Justice
Heaven’s cold calculus never quite won him over. He founded the Horadrim and armed them with soulstones cut from the Worldstone. Across Diablo II and III he keeps choosing Sanctuary; the long angelic career fits a card badly, the ally habit does not.
Angel of Death
Once Wisdom, then Death, and Westmarch paid the bill. Reaper of Souls sends him at the city and the Black Soulstone. Diablo IV’s unveil still names his fall among the reasons Sanctuary enters its darkest age.
Daughter of Hatred
Mother of Sanctuary, and the reason 2019’s unveil felt like a warning. With Inarius she made the world and the nephalem line that becomes humanity; banished, then returned as Diablo IV’s campaign face, daughter of Mephisto included.
Co-creator of Sanctuary
Creation myth with a body count. Archangel who hid a new world with Lilith, then banished her and crippled the Worldstone so their children would weaken into humans. Diablo IV puts him back opposite her under the Cathedral of Light.
Disillusioned Horadrim
Introduced in Reaper of Souls among the Knights of Westmarch, Lorath becomes Diablo IV’s weary Horadrim voice through the Age of Hatred. Blizzard still frames him that way when Neyrelle’s road turns toward Mephisto.
Bearer of the soulstone
She leaves the Diablo IV campaign carrying Mephisto sealed in a soulstone, and the Age of Hatred follows her footsteps. Vessel of Hatred tracks her into Nahantu. Lord of Hatred finishes the road she opened.
Tristram’s cathedral to a Spring 2029 sequel still in early conversation. Expansions answered what base games left open. The Auction House came out when it poisoned the fantasy. The fourth game learned to speak in seasons. The fifth starts after the fall. Loot still drops.
