Let's be clear: Mojang has never released a version 0.0.0.
The first version that exists in the launcher's history is Pre-Classic rd-132328. However, in 2020, modder and archivist MiningMark48 attempted to reconstruct the "Day 1" code. Using decompiled libraries and memory glimpses from Notch's old blog posts, they created a playable simulation called "Pre-0.0.0." alpha minecraft 0.0.0
In that simulation:
This is likely the closest humanity will ever get to Alpha Minecraft 0.0.0. It is less a game and more a proof of concept. Let's be clear: Mojang has never released a version 0
At its core, Minecraft Alpha 0.0.0 is a block-based, 3D world where players can build and explore. The game features a simple, yet intriguing gameplay mechanic: This is likely the closest humanity will ever
However, this alpha version was very rudimentary:
Many players confuse "Cave Game" (Notch's internal project name) with the version number. On May 16, 2009, Notch uploaded a video to YouTube showing a prototype where you could place stone blocks. The description didn't list a version number. The community retroactively dubbed this the "0.0.0 era" to fill the historical timeline.