Omniarchive
In-game article clicks load inline without leaving the challenge.
Omniarchive is a website and community created by HalfOfAKebab in September 2017 that focuses on preserving and recovering missing and lost versions of the game Minecraft. The website's goal is to document the history, proof of the existence, screenshots, and videos of lost versions while contributing that information to the Minecraft Wiki. They have collected and found more than 80 previously missing versions.
Findings
Minecraft Alpha 1.1.1
In June 2021, Omniarchive found somebody who still had the Minecraft version alpha 1.1.1. This version was important due to it only being available for around 3 hours and 25 minutes in September 2010, and the download for versions was very slow, before it had a reuploaded fixed version due to a "grey screen" bug. The version was discovered by a community member who contacted somebody who had it on an old USB flash drive.
Brickcraft
In January 2025, the Omniarchive team found and acquired a version of Brickcraft (codenamed "Project Rex Kwon Do"). This was an unreleased collaborative project by Mojang Studios and The Lego Group. The build dates back to 28 June 2012, around a month before the game's cancellation.