When one plays Minecraft, the official launcher of the game automatically allocates a certain amount of RAM to a version. Whenever this version opens on a device, the allocated RAM gets occupied.

Players can increase RAM allocation for any Minecraft version (Image via Sportskeeda) Minecraft, like every other game, requires RAM to run on a device.

If you see Minecraft has run out of memory error, your might have to allocate more memory to Minecraft, Reduce video settings, etc.