One of the earliest games revealed for Sony's upcoming PlayStation 5 title was the science-fiction horror game Quantum Error. Originally set to be a PlayStation exclusive, developers TeamKill Media have since confirmed that the game is also coming to Xbox Series S and X when it launches in 2021.

Quantum Error turned heads when it was first revealed, with many comparing it to other classic sci-fi horror games like Dead Space. Since its initial trailer, not a lot has been revealed about Quantum Error, beyond some brief glimpses of gameplay and that it is now expanding to next-generation Xbox platforms. The developers explained that the decision was made after getting "so many requests" for Xbox versions following events like Gamescom and the Future Games Show. "This announcement and move is to allow more players to experience Quantum Error," the developers said on Twitter. No PC version has been officially announced to date.

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While this is a very consumer-friendly decision, it has still drummed up some controversy regardless. Some disgruntled PlayStation fans on Twitter have said that they aren't buying the game now that it's also coming to Xbox. "Sorry, you have lost a sale for not being clear from the first moment," one user said. Other PlayStation fans, meanwhile, seem to approve of the decision and are happy that the game is going to reach a wider audience.

Some PS5 horror fans may be upset because this isn't the first time that a horror game has abandoned its PS5 exclusivity plans. Previously, Martha is Dead dropped its PlayStation 5 release plans entirely, and is now coming to Xbox Series X as a console exclusive. It's possible that some of those who are upset by TeamKill Media's decision would not have reacted quite as strongly had the Martha is Dead situation not taken place.

But that doesn't mean the PS5 won't have major exclusive horror games. One of the most prevalent theories about upcoming PS5 games is that Konami and Sony have a Silent Hill PS5 exclusive game in active development. This project has yet to be announced, but it has been leaked by proven industry insiders, who all seem to agree that the game's announcement is going to happen by the end of the year.

And even if the Silent Hill PS5 exclusive game never materializes, it's not like Sony's next-gen console will be hurting for horror games. Quantum Error is still coming to PS5, along with other major next-generation horror games, with Capcom's Resident Evil 8 arguably being the most notable of the bunch.

Quantum Error will launch in late 2021 for PS4, PS5, and Xbox Series X.

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