If you do not own the game, Mojang historically offered a "Classic" browser version for free. While not exactly 1.2.6_01, it provides the same retro feel without the need for a login. Safety Warning: Pirated Downloads
The hunt for Minecraft Alpha version 1.2.6_01 is a journey into the deepest roots of gaming history. Released in late 2010, this specific version represents the final peak of the Alpha era before the game transitioned into Beta. The Mystery of Minecraft Alpha 1.2.6_01 minecraft alpha 12601 free
Minecraft Alpha 1.2.6_01 was a small but critical hotfix. It arrived just as the "Halloween Update" was maturing, bringing stability to the newly introduced Nether and fixing game-breaking bugs. For many veterans, this version is the "purest" form of the original survival experience. Why Players Seek This Specific Build If you do not own the game, Mojang