No official Mojang archive confirms “Extra Quality” as an official branch. It is a for rare, unstable, or miscompiled JARs.

: Killing mobs grants points, essentially the precursor to the modern XP bar. 🍄 Bizarre Resource Gathering

This version represents the rawest form of Minecraft’s survival loop before the introduction of crafting or complex progression. Direct Resource Drops

For those who don't want to fiddle with .jar files, developers like PeytonPlayz595 have ported the modded version of to WebGL. This allows players to play "Extra Quality" versions of the Survival Test instantly in a Chrome browser, even on low-end Chromebooks.

Think of it as the game's "prototype hardcore mode," and it was brutal:

Vanilla builds of 0.30 often lose access to their original resource streams because Mojang's early asset servers are offline. Authentic emulation launchers fix this by pointing to archived directories, restoring the vintage, satisfying "thud" block-breaking sounds and the original neon-green grass textures that characterized the 2009 build. Step-by-Step: How to Play Survival Test 0.30 Today