There's a simple reason, of course, that more games don't work across platforms: Business.
Cross-platform play is one of the next steps in the gaming industry.
That also brings a name change to just Minecraft across all these versions, i.e., Pocket Edition will be no more - just plain ol' Minecraft.
At the same time, Microsoft and Mojang quietly began working to make Minecraft cross-platform by upgrading the Pocket Edition and making it available on PC as the Windows 10 Edition. They don not yet have any updates on Sony but the definitive goal is to bring all Minecraft players together, which is their main principle. Same goes for Rocket League, which Psyonix said this morning would support cross-play between Xbox One and Nintendo Switch, but not PS4. What's more, any DLC you purchase will be accessible amongst the various devices at no extra charge.
Also later in the fall, Minecraft will 4K HDR graphics support which is being called the Super Duper Graphic pack, and it will be available to all players across devices, including Xbox One, Windows 10, iOS, mobile, and VR.
This sounds very much reminiscent of the days of the Nintendo Wii and Friend Codes. User created content and servers are on the way which will allow a whole new kind of content for a variety of platforms.
The Community Marketplace, which hit Pocket and Windows 10 editions in June, was a big part of this transition, allowing players to search for, buy and sell their own in-game creations. This'll let you search a list of servers which you can join right away!
Additionally, Microsoft will also add a server browser to the latest update, which launches with four servers including Lifeboat, Mineplex, InPVP, and Cubecraft. There will be parental controls in place to ensure that kids don't end up in the wrong sort of world. The new update will introduce several new features to the game. "It will improve any screen on which you play, but the best experience will be on Xbox One X".
You might wonder why PlayStation isn't on this list, and we have some bad news for Sony gamers.