Found by osolek3 during our playthrough.
Server IP: zero.minr.org
Who are we?
We are one of Minecraft's oldest servers. Our map dates back over 12+ years and our server has had an uptime of 99%. We have over 600 challenges that will keep you occupied for months. All of our challenges have been developed tested and curated by our membership base who have completed our Hardcore set of challenges.
We are strongly against pay-to-win features and have been a privately funded server for the entirety of our existence, amounting to over a decade of free and fair play for our community.
You yourself could one day be creating a challenge for our server that will remain for years to come.