It's part of a test to see how large events can be organised - and everyone has got to show a negative Covid test result before entering.
The IP address for Hex2 is org.brutalprison.com, you can copy server address, find Discord server, website and more in the server info section (top left corner).
Just open your Launcher and click the "Play" button then select "Multiplayer" option from the menu.
Now click "Add Server" button, paste in the text org.brutalprison.com in "Server Address" input and hit "Done".
Then once server connection will turn green, you can click on "Join Server" to join and play on Hex2 server.
There are 6 players playing Hex2 at the moment.
Hex2 supports version 1.18, you can also try to join with different version but 1.18 is recommended Minecraft client version.
The Hex2 is hosted in United Kingdom, Hex2 was last checked 18 minutes ago and has fast connection.
On Hex2 Minecraft server you can play Creative, Events GameModes.