Java Edition pre-Classic rd-131655

rd-132151 (also known as Cave game tech test&#8202;, or alternatively, simply "CGTT") is a pre-Classic version made on May 13, 2009. This version was never released. It is the first known version of Minecraft, or Cave Game to have footage, although there were some builds before this version.

General

 * Physics
 * Lighting
 * Only 2 light levels
 * Chunks
 * World generation
 * 256×64×256 tile map.
 * Caves
 * Reached down until a few blocks before the last layer of cobblestone, making a ravine.
 * Creative mode
 * This was an extremely basic version of it. The player could not fly or place/remove blocks and there was no inventory or hotbar to get them from.

Entities

 * The player
 * Currently has no visible model.
 * Has a height of 1.7 blocks.

Blocks

 * Blank.png Air
 * Not listed internally as a block at this time.
 * Cobblestone JE1.png Cobblestone
 * Made with the same graphics from Notch's game RubyDung.
 * Grass Block Revision 1.png Grass
 * Made with the same graphics from RubyDung.
 * Grass generation is randomized, but it will only generate on fully lit tiles. The higher the Y level is, the more chance there will be of Grass generating. At Y = 0, Grass will generate on all fully lit tiles. World generation cannot generate any blocks above Y = 0.

Earlier versions
There were some earlier builds before this version:


 * Pre-CGTT Initial Test (May 10th): Development first started, with game being built from RubyDung engine.
 * Pre-CGTT intermediate builds (May 10th to May 13th): Added most of the features seen in rd-132151.
 * Pre-CGTT 20090512: Fixed a performance issue.
 * Pre-CGTT 20090513-1351 (17:41 UTC): Reduced performance. "wait, I think I did my math wrong here somewhere. 3 terabytes of ram?"
 * Pre-CGTT 20090513-1408 (17:48 UTC): Reduced performance. "100 ms lag spikes make the game unplayable right now, and they happen every time a block changes.. soo.. :-\"
 * Pre-CGTT 20090513-1641: Improved performance slightly. "I made it only update two chunks per frame maximum, and it's very slow"

Changes from rd-132151 to previous versions

 * Updated tile chunks
 * Chunks are now 16x16 instead of 8x8
 * Chunks near the player load in first now.

Video

 * Original


 * Archive