This is mind-blowing. Minecraft running in Minecraft
A Minecraft enthusiast known as Sammyuri, in collaboration with Lead Programmer and Designer Uwerta and server host StackDoubleFlow, has unveiled an absolutely mind-blowing project that looks almost unreal. This time, the author has managed to create a playable, albeit simplified, version of Minecraft in Minecraft using redstone only, with no command blocks, no data packs, and no mods.