Diablo 4 Director: Major Action RPG Reworks Are Normal — Here’s Why That Matters

By Marcus Tan — GamesHarbour PC and Esports Editor. Marcus covers Blizzard titles, competitive ARPGs, and live-service games across the SEA region.

Blizzard Entertainment’s Diablo 4 associate game director Zaven Haroutunian has said publicly that it is “normal” for most action RPGs to undergo major structural reworks — what he calls “transitions” — pointing to the friction points that only surface after players accumulate tens of thousands of hours in a live game.

The statement reframes how players should think about Diablo 4’s extended overhaul history — and raises a broader question about what it takes to sustain an action RPG with a live-service model over multiple years.

What the Game Director Actually Said

In an interview published by PC Gamer, associate game director Zaven Haroutunian acknowledged the scale of changes the game has gone through since its June 2023 launch, describing the iterative process as an industry-wide reality rather than a Blizzard-specific failure.

“Friction points that we could never imagine suddenly rear their heads over the course of 10,000 hours,” Haroutunian said. He deliberately calls these overhauls “transitions” rather than failures — a framing that recontextualises each rebuild as a necessary response to deep player behaviour rather than a design mistake. The comment is a direct acknowledgment that no amount of internal playtesting replicates the pressure a live playerbase exerts on a game’s systems over time.

Haroutunian also clarified that the intention is not to keep changing things arbitrarily: “The intention is not to replace everything just because we can.” Each rework, he said, targets systems that “don’t support the player experience in a positive way.”

Key Diablo 4 System Reworks Since Launch

Diablo 4 launched in June 2023 and has since undergone multiple structural overhauls:

• Season 4 — Loot Reborn (May 2024): Complete itemisation and crafting system rebuild
• Vessel of Hatred expansion (October 2024): Level cap reduced from 100 to 60; Spiritborn class added; Paragon Board redesigned
• Season 11 (October 2025): Second major monster and combat system overhaul
• Lord of Hatred expansion (April 28, 2026): Full skill tree rework with new skill variants for all eight classes; new Loot Filter; Horadric Cube crafting system

The scale of those reworks is measurable in player response. Diablo 4 arrived on Steam in October 2023 to a “Mixed” review rating and a concurrent player peak of just 2,374. After the Season 4 Loot Reborn overhaul, the game’s Steam all-time concurrent player peak reached 55,561 on 13 October 2024 (source: SteamDB) — a 23x increase driven almost entirely by the positive reception to that rebuild. As of March 2026, the game holds approximately 66,000 Steam reviews with a 64% positive rating, per Gamalytic — a figure that reflects the layered reputation across both the rocky early period and the improved post-Season 4 era.

Haroutunian specifically named the paragon system as a “really good example” of a mechanic “that’s starting to feel like — why am I doing this?” That framing tracks with documented community frustration: a May 2025 thread on the official Blizzard Forums described the Paragon Board as “a real sticking point for a lot of players,” citing the time investment required to level glyphs and the dramatic gap in power between theory-crafted and self-built boards. The paragon system is not changing in Lord of Hatred but is flagged as a future rework target.

Why This Argument Holds Up — and Where It Has Limits

Haroutunian’s position is defensible. Path of Exile, one of the most critically respected action RPGs ever made, has undergone complete league mechanic overhauls and fundamental system rewrites across its 13-year lifespan. Grinding Gear Games has reset league mechanics, reworked entire skill systems, and rebuilt the currency economy multiple times — always in response to how a deep playerbase actually interacted with the systems. Diablo 3 went through its own “Loot 2.0” rebuild in 2014, widely credited with saving the game’s long-term player base.

Where it has limits: the argument conflates ongoing iteration with a product that shipped underbaked at a premium price. Diablo 4 launched at a high price point with a season pass structure that charged players additional money through a period where the foundational systems were still being rebuilt. Players who paid full price in June 2023 experienced a substantially weaker version of the game than those who picked it up after the major reworks — the “Mixed” Steam launch reviews and the sub-2,500 concurrent player count at that time are a contemporaneous record of that gap.

The SEA Player Perspective

For SEA players who came to Diablo 4 late — picking it up during regional sales or at the Vessel of Hatred expansion launch price — Haroutunian’s framing is more accurate to their experience. The version available now is the version that works. The rework history is largely invisible to anyone who did not play through it.

For the players who were there from June 2023 and paid full price through the rocky periods, “this is normal” lands differently.

What This Tells Us About the Live Action RPG Model

Haroutunian’s statement is also a preview of what Diablo 4’s future looks like. If major reworks are framed as a standard feature of the live model rather than a failure state, Blizzard is signalling that more significant changes are likely — not just seasonal content, but structural overhauls of systems that are currently live. The paragon system is the most likely next candidate.

For players invested in the current build, this is useful context: the character builds, itemisation systems, and endgame loops you engage with now are not permanent. They are working hypotheses that will be revised when 10,000-hour player patterns reveal the next set of friction points.

Source: PC Gamer interview with Zaven Haroutunian, published March 2026. Player statistics sourced from SteamDB and Gamalytic (March 2026). Community sentiment sourced from official Blizzard Forums (May 2025). Diablo 4 is currently available on PC, PlayStation 5, PlayStation 4, Xbox Series X|S, and Xbox One. Regional pricing varies by storefront. Article reviewed March 21, 2026.