Step 1: Download and extract Classic-UO https://www.classicuo.eu/
Step 2: Download the Ultima Online Client. We currently do not support Enhanced client as of yet. This will change very soon. https://downloads.eamythic.com/uo/installers/UOClassicSetup_7_0_24_0.exe
Step 3: Create profile and enter in 3.151.112.231 and port 2593
Step 4: Create a username and password
Step 5: Enjoy the game.
Optionally but highly recommended: https://www.razorce.com/download/