However, Alpha 1.2.0 was notoriously buggy. Enter . Version 1.2.3-03 is the third sub-revision of 1.2.3 (released in December 2010). It fixed critical issues like:
Only use this if you want to tinker with the game files directly on the vanilla launcher. Minecraft Alpha 1.2.3-03 Download
Versions found outside official Mojang sources (like the Minecraft Launcher ) can be unstable or modified by third parties. Always back up your saves and scan files for safety before running "mystical" builds. However, Alpha 1