Begin Your Journey
Immortal Realm uses the free, open-source ClassicUO client. Follow these steps to get set up and connected. The whole process takes about 10 minutes.
Get the UO Classic Client Files
Ultima Online requires the original game data files. Download the free Classic Client from the official Ultima Online website (uo.com). Install it to get the data files — you don't need to launch the official client after that.
The data folder you need is typically: C:\Program Files (x86)\Electronic Arts\Ultima Online Classic
Download ClassicUO
ClassicUO is the open-source client used to connect to Immortal Realm. Download the latest release from the ClassicUO GitHub releases page.
ClassicUO Releases on GitHub ↗Download the ZIP for your platform (Windows x64 recommended). Extract it to a folder like C:\ClassicUO\
Configure ClassicUO
Launch ClassicUO.exe. On the settings screen, set the UO Data Path to your Ultima Online Classic installation folder. This tells ClassicUO where to find the game art and map files.
Add Immortal Realm
On the server list screen, click Add Server and enter the Immortal Realm connection details.
Create Your Account & Log In
Enter a username and password on the login screen — this creates your account on the shard directly. No website registration required. Once logged in, create your first character and begin your story in New Haven.
System Requirements
Ultima Online is a lightweight game — nearly any modern computer can run it.
Need help? If you run into issues connecting or configuring the client, visit the Adventurer's Guide or ask in our Discord community.
