You can play Minecraft solo, but it's much more fun with friends. Here's how to play multiplayer in Minecraft: Java Edition.

It's not an option I would recommend too much in the long run, because to play, that person will have to be connected and with the server running at all times. In other words, every time you want to ...

To reallocate RAM to "Minecraft," you'll have to edit the game's settings through whatever launcher app you use.