Command blocks allow players to essentially program in new things, and when used correctly, can even make something as complex as Crossy Road in the game if you know how.

Using command blocks, a Minecraft user manages to make heads spin, as they show a project they've been working on that's pretty mind-boggling.

A YouTuber makes an 8x8x8 fully 3D-rendered Minecraft world in Minecraft with no command blocks, no data packs, and no mods.