The Tech Demo of Minecraft.
[Minecraft 4K] is a small experimental version of [Minecraft] Made by [Markus Persson] back in 2009, December 2 for the [Java4K Game Programming Contest].
The contest had one rule: The entire program must fit into 4 Kilobytes of Java bytecode.
Which is why the Game is really, really small. More of a Tech Demo.
[Minecraft 4K]:
->Very low resolution.
->No anti-aliasing.
->Does not dynamically generate Terrain.
->Move around->WASD.
->Break Block->RMB.
MEGA Download: (Minecraft 4K) (I archived the files here)