Downloads

Ultima Online
  Age of Shadows UO Download
  Once you have the installation, you will need to run the file.
  Finally, run client.exe to the patch version recommended by your shard. (6.0.3.xx and higher for Hybrid)

  EA large downloads
  This is the most recent client offered. This one will take the least patch time.

I have no control over the last link above, so I offer both. Only one is needed to play on Hybrid. The only difference between clients is the length of time to patch. Patching will update even the oldest client with the newest files. In all cases, patch to at least 6.0.6.3 for Hybrid.

New TreeHack
  HotTreeHack
  Treehack but sexier. This version allows you to lumberjack and plants are still visual.
  The creator of this client modification wishes to remains anonymous.
  You are welcome to express your appreciation in the cbox window.

Razor
Razor
Razor is a utility program for UO

PlayUO aka Krrios' Client
Sallos
Sallos will allow you to connect to Hybrid with the PlayUO client and give access to other games.

UOAM
UOAM setup
The site for UOAM is no longer working. This is the setup file I took from the site for my own use before it went down.

World Map of Treasure Hunting
Treasure Hunt Map
This is a map of Brittania marked with all 200 treasure locations.