'Fortnite' players are furious at Sony for locking accounts to the PlayStation 4 - an exclusionary tactic that's burning years of goodwill with fans

This all started with "Minecraft."

The Microsoft-owned blockbuster is available on pretty much everything that plays games, from consoles to phones to handhelds. It wasn't always owned by Microsoft, but Microsoft made a commitment to maintain the game on all platforms. A new version of the game even launched on Nintendo's Switch console last year.

Microsoft — maker of the Xbox One, and direct competitor to Sony's PlayStation 4 and Nintendo's Switch — publishes "Minecraft" on Sony and Nintendo (and Apple and Google) platforms in addition to its own Xbox consoles.

More importantly, even though Microsoft owns "Minecraft," the game can be played across competing devices. "Minecraft" players on Xbox One can join up with players on iPhone, Nintendo Switch, Android, and PC/Mac — even if you're playing in a virtual reality headset! But Xbox One can't play with PlayStation 4, and vice versa. Microsoft wants the PlayStation 4 version of the game to work with the others, but talks have thus far resulted in nothing.

"Minecraft" was the first of several major games to offer cross-platform play; "Rocket League" and "Fortnite" followed soon after. It's telling that some of the biggest games in the world are the forerunners of cross-platform play.

Why don't more online multiplayer games function across platforms? If "Overwatch" is the same game on PlayStation 4 and Xbox One, why can't I play with a friend?

The answer is obvious, if illogical: Because Sony and Microsoft are competitors. Of course their consoles don't work with each other. It's a basic principle that goes back to the original Nintendo Entertainment System and Sega Master System.

But it's 2018. If iPhone and Android users are able to play games together, why aren't Xbox One, Nintendo Switch, and PlayStation 4 users able to play games together?

That question has come into stark relief with the launch of "Fortnite" on Nintendo's Switch.

"I just get stuck in who this is helping," Microsoft head Phil Spencer told me in an interview last week. "Say you're not into gaming, and it's your kid's birthday. You buy them a console. I buy my kid a console. We happen to buy consoles of different colors — you bought the blue one, I bought the green one. Now those kids want to play a game together and they can't because their parents bought different consoles. I don't know who that helps."

For the most part, Sony has stayed quiet about its role in the lack of cross-platform play between the PlayStation 4, Xbox One, and Nintendo Switch.

A Sony representative offered the following statement to the BBC last week — the first and only public statement Sony's made regarding the issue with "Fortnite" accounts being locked to the PS4 and cross-platform play:

"We're always open to hearing what the PlayStation community is interested in to enhance their gaming experience. With more than 80 million monthly active users on PlayStation Network, we've built a huge community of gamers who can play together on 'Fortnite' and all online titles. We also offer 'Fortnite' cross-play support with PC, Mac, iOS, and Android devices, expanding the opportunity for 'Fortnite' fans on PS4 to play with even more gamers on other platforms. We have nothing further to add beyond this at this point."

In the wake of this statement, the #BlameSony hashtag was born.

There's even a clever meme — of course there's already a clever meme — being passed around.

In 2013, when Microsoft botched its explanation of how the Xbox One would work with used games, Sony produced a video that "explained" how used games work on PlayStation 4. It depicted one Sony executive handing another a copy of a game, and that was it — a cheeky poke at the comparative simplicity of the PS4 over the new Xbox.

In the meme above, the same concept is being applied to cross-play: On Xbox One and Nintendo Switch, it just works without a caveat.

There was a brief period of time where PlayStation 4 and Xbox One players of "Fortnite" were able to play together online. Epic Games called it an accident — a "configuration bug."

Whether it was an accident or not, it demonstrated that "Fortnite" is capable of being played across the two competing platforms. Not only is the game capable, but the ability is already functional. Epic Games may not have intended as much, but the "accident" made a point: The biggest game in the world is able to bridge competing platforms right now — if only it were allowed.

And it sounds like Sony is the one standing in the way.

The head of Microsoft's Xbox division, Phil Spencer, is the loudest proponent of cross-platform play — it was Microsoft that started all of this with "Minecraft." Spencer told me in an interview last week that he's continuing to push for cross-platform with the PS4, but hasn't made any progress.

The head of Nintendo of America, Reggie Fils-Aime, is also a proponent of cross-platform play. Nintendo's Switch already has several games that enable play between the Switch, Xbox One, and other platforms. "At Nintendo, we believe that honoring the vision of a developer in the case of Epic, honoring the fans and allowing cross-play, is really the right thing to do. So that's our stance," Fils-Aime told Fox Business News in an interview last week.

Given these statements, Sony's position with the PlayStation 4 comes across as antiquated. Worse, it comes across as anti-consumer — a direct reversal of the "For the Players" messaging that fans have embraced.