Welcome to UO Cataclysm


Marketplaces reminiscent of a lost era..

The Frost Elf Den, a dangerous destination for an adventurer.

Custom crafting includes weapons, armor, potions and more!

Lively towns centered on a bustling economy.

Rare custom mounts can be tamed only by the brave.

Perilous journeys into our dungeons await.

Static houses are available for your RP pleasure.

PVP in our custom duel pits where you can risk it all!

Custom Mob Locations with Storylines Around the World.

UOCataclysm is a perfect blend of the best of Sphere 51a, T2A and what many of us consider the 'golden age' of Ultima Online. UOC has spared no expense to design a server which functions with all of the greatness of the original Sphere but powered by RunUO. Be apart of a rich, custom world with a unique flair and quality the most nostalgic can appreciate. Finally a server you can enjoy that lives up to its promises on being true to the original Sphere playstyle!

Cataclysm Expansion III Has been released 5/12/2018!



Town Crier

Super Sunday Event schedule this weekend! 10/11/2015 at 9:00AM PST (GMT -8:00)

Another round of our weekly Super Sunday events! 1v1 Tournament, followed by Bomberman. Good prizes to victors, prizes for all! See you there...

Meet the Cataclysm Staff Event Tonight, Friday 10/2/2015 at 8:00PM PST! (GMT -8:00)

Tonight we will be unveiling a new area at our first of this months Meet the Staff Question and Answer event! Mingle with the devs, ask questions about development, and hear news face to face about new patches! All participants receive a prize, meet at the Moonglow Safe Zone and we'll see you there!

Super Sunday Event schedule this weekend! 9/27/15 at 9:00AM PST (GMT -8:00)

More events in Britannia this Sunday morning! A 1 vs 1 tournament, followed by Bomberman! Rare prizes and good times ahead. For more information, see the thread here.

New Vendor Mall launches on CUO!

We have a new Vendor Mall much better suited for vendor placement than the previous one. The existing Vendor Mall is now the Safe Zone for idling! New moongates have been added to the Safe Zone as well! For more information, see the thread here.

Lag Issue Resolved! Server More than Stable.

We've isolated the cause of the ongoing lag that we were experiencing, and resolved the issue. We we're experiencing CPU spikes due to some commands being run on the server, which we disabled. This in turn was causing heavy client lag. As a side effect of this, the Daily Event will be temporarily unavailable. We're back to our normal CPU usage and the shard is more than stable, special thanks to all those who helped diagnose and resolve this! The Daily will resume very soon.



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