In September 2010, a woman named Luna downloaded the latest version of the indie game "Minecraft" (alpha version) onto her laptop. She was excited and tweeted about it: "Minecraft update! . Whether she played it or not, no one knows. All we know now is that she downloaded it and did not delete the download folder later.

Ten years later, Luna made a group of archivists happy for one thing: she backed up her user profile and saved it before later erasing her laptop. Members of Omniarchive, a collective of Internet archivists, were following up on the long short-lived Minecraft Alpha 1.1.1. Alpha 1.1.1 did not last long because of a game-breaking graphical bug. But that's not what matters to the archivists: they want it all, and finding Alpha 1.1.1 has long been a joke within the Omniarchive community. After years of searching around, it seemed unlikely that it would ever turn up.

Then a member found Luna's September 18, 2010 tweet about a new MineCraft update.

The rest, as they say, is history. Luna searched the archive folder on her hard drive but could not find it, so she checked her old USB external drive. In it was minecraft.jar - yes, kids, Minecraft was once a game made in Java. That .jar file was dated September 18, 2010, 21:53 local time. Later, after a cursory look at the file's contents, Luna was convinced he had found 1.1.1.

"You will literally become a legend on this server," said a commenter on the associated Discord server.

Oh, and it turns out that this isn't the only rare build Luna has. She also had a c0.29_01 .jar. Now a clean one is also up on archive.org.

Great find, Kotaku.