Notch's 2009 Cave Game Tech Test, an Early Minecraft Prototype
Nizzotch · Demo · 3 min · 2009 · YouTube title: Cave game tech test
Why it's here
HN links it as a historical artifact showing what Minecraft looked like at its very beginning.
What it covers
An early 2009 tech test by Notch of an Infiniminer-style cave game running about 700 fps on a 256x256x64 tile map. It is the prototype that grew into Minecraft.