Diablo 5’s Design Shift: Blizzard Abandons Diablo 4’s Open World in Favor of Tighter Zones

Blizzard is making a bet on the future of Diablo by looking backward. The company is returning to procedurally generated terrain for the overworld in Diablo 5, a move away from the static open world that defined Diablo 4. The admission comes directly from franchise executive producer Matt Zitterman, who told Polygon at BlizzCon 2026 that the previous game’s approach was a real pitfall.

“We saw that it was this great, amazing experience to explore what the full world of the eastern continent looked like in Diablo 4, but that was an experience that you really only were able to have once, and we wanted to be able to provide that as a more constant experience,” Zitterman said.

Mistake That Made Sense

Diablo 2 and 3 both used procedural generation for their outdoor worlds, connecting dungeons through randomly placed regions. Diablo 4 abandoned that approach, opting for a mostly static open world tailored for online multiplayer. Players could explore once, see everything, and then stop discovering.

That trade-off worked for the game’s initial design. But the community didn’t love it. Zitterman now calls the decision a pitfall, admitting the game only let players have a sense of discovery a single time when they found a new area.

Game director Joe Shely framed the shift more plainly. “Players had so much fun in Diablo 4 unfurling the fog of war… That was an experience that was kind of one and done, right? But players want that. They want that sense of constant discovery.”

World Design in Diablo 5

In Diablo 5, the western continent has fallen completely under the control of Diablo. There are no bustling towns to restore and thrive once demons are killed nearby. Instead, a caravan serves as the primary base of operations for the player and their crew. Both the overworld and dungeons will be procedurally generated with “tiles” whenever a quest is ventured out on.

Those tiles can vary in look, monster type, and treasure chest location. Some changes will depend on whether one of Diablo’s Dread Commanders controls the area. Shely offered an example of how this works in practice: “You might encounter a ruined church, and that ruined church can be represented in different ways depending on the state of the region when you’re there.”

Starfield Comparison

More recent games have disappointed with how repetitive their procedurally generated areas feel, both visually and in content available. Diablo fans who grew up on the series’ older entries will remember the joy of exploring a living, changing world. The question of whether Diablo 5 can deliver on that promise without falling into the same traps is fair.

I asked the developers how they plan to avoid some of the potential repetitiveness, and they seemed confident it would not be an issue.

“Well, we’re going to build a lot of content,” Shely stated. “But part of it is creating a balance between having an area of the world have some identity so that you have something that makes it like a place, but also have elements that can be different. So there’s a balance between those two things that creates that sense [that] it’s not just like we grabbed a pile of blocks and dumped them out on the floor and that’s what you get. It’s intentional.”

Technology Behind the Procedural World

Zitterman noted that this is a technology the team has been building on since Diablo 3. He added that “when the time is right, we can deep dive a little bit more on exactly how some of the technology allows us to solve that problem.”

The plan is simple in theory but complex in execution. The developers are promising an overlay map from day one, which solves a problem that plagued Diablo 4. The game launched without an overlay map, instead relying on a mini-map and an in-game map. That issue was eventually resolved earlier this year, but Shely confirmed that Diablo 5 will include the feature from the start.

A mini-map wouldn’t be particularly useful for a randomly generated world, after all.

What We Know So Far

1. Diablo 5 returns to procedural generation for the overworld.
2. The western continent is under complete control of Diablo.
3. A caravan serves as the primary base of operations.
4. Tiles will change based on Dread Commander presence.
5. The game will include an overlay map from day one.
6. The technology has roots in Diablo 3.

The admission from Zitterman carries weight. A company rarely admits a major design choice was a pitfall, especially when that choice was made for a reason.

Blizzard’s Diablo 5 is a return to form, and the franchise’s leadership seems open to explaining exactly how it will work further down the road. The game launches in 2029.

Blizzard · Diablo 4 · Diablo 5 · game design · procedural generation