Blizzard devs are confident of a smooth launch for Diablo 4

"When you have people coming through different ISPs and coming in through different servers around the world, there's so much more data you get from that," Piepiora explained. "And with each of those we found lots of little things that happen, like this happens with clan invitations, this happens when you join a party in a certain way - lots of little things like that across the board."

He adds that these tests are not meant to entice players to buy the game. Devs need to gather data to make sure that the launch goes off without a hitch. Players participating in betasgive feedback and report on issues giving devs insight into how the game will perform during its release.

"These are not marketing betas, none of them were. Everything has been about, we need data to make sure the launch goes smooth. That's entirely the purpose of the betas we did."

He continues, "And we learned a tonne. Even this last one where it was really smooth - people didn't have long queues leading into getting into the experience - we still found things happening in the back end that if left unresolved, would have resulted in some issues during the launch experience. We caught those only because we did this extra weekend."

Mueller shared these tests took a lot of effort to run but said that it was worth it. He is confident that the launch experience will be as straightforward as it can be for players.

"Each one, it's a tonne of work to put them on," Mueller said. "It's not a trivial thing for us to do. But we see the value as being worth it. And again, it's not a marketing thing. It's really about getting that information so we know day one is going to be as good as we can possibly make it, and that we just feel confident going in.

"So, currently right now we feel really confident."

Diablo 4 is coming to PC, PS4, PS5, Xbox One, and Xbox Series X/S on June 6, 2023.