Server Compatibility

Server compatibility

GUO is meant to work with any Ultima Online server, not only the ModernUO shard it is developed against. The server lab runs the same scripted cases against each server and records what happened. This page is generated by python tools/server_lab/run.py wiki from the lab's latest results; do not edit it by hand.

Last updated: 2026-10-09. GUO client version: 7.0.107.76.

Servers and versions

Server	Version tested	Era
ModernUO	core d4531cd94 (2026-09-30)	Endless Journey (Id 11), tools/modernuo/config/expansion.json
ServUO	core d76bf4443 (2026-08-04)	EJ
UOX3	core a8a4aefeb (2025-07-30)	lbr (upstream default; later-era cases may be n/a)
Sphere X	core dd28a0ad5 (2026-09-18), scripts 27e78bc89 (2026-03-27)	upstream default; AOS-era cases such as tooltips may be n/a

Results

PASS: the case ran to the end. FAIL (GUO): a GUO bug, filed as a story. FAIL (server gap): the server does not do this the way the client expects; a local patch is kept for it. FAIL (untriaged): failed, not yet looked at. n/a: the server does not have the feature (often its era). not run: the case has no scenario yet, or this server has not been set up in the lab yet.

#	Case	ModernUO	ServUO	UOX3	Sphere X
0	Start the client and reach the login screen	PASS	not run	not run	not run
1	Log in, server list, character list (and log out)	PASS	not run	not run	not run
2	Create a character on a new account	not run	not run	not run	not run
3	Delete a character	not run	not run	not run	not run
4	Log out and back in	not run	not run	not run	not run
5	Walk, run and pathfind	not run	not run	not run	not run
6	Map switch (moongate or staff teleport)	not run	not run	not run	not run
7	Light, weather, day and night	not run	not run	not run	not run
8	Speech, journal, emotes	not run	not run	not run	not run
9	Paperdoll and backpack	PASS	not run	not run	not run
10	Drag and drop (ground, container, equip)	not run	not run	not run	not run
11	Containers, stacking and splitting	not run	not run	not run	not run
12	Item property tooltips	not run	not run	not run	not run
13	Vendor buy and sell	not run	not run	not run	not run
14	Bank box	not run	not run	not run	not run
15	War mode and melee against a spawned creature	not run	not run	not run	not run
16	Cast a spell (target cursor, mana)	not run	not run	not run	not run
17	Use a skill (hiding, healing)	not run	not run	not run	not run
18	Death, ghost and resurrection	not run	not run	not run	not run
19	Party invite and accept	not run	not run	not run	not run
20	Chat or guild message	not run	not run	not run	not run
21	House placement (preview, place, open the door)	not run	not run	not run	not run
22	A boat or multi on the map (drawn, walked on)	not run	not run	not run	not run
23	Macros and hotkeys against the server	not run	not run	not run	not run
24	Plugins loaded (plugin_probe)	not run	not run	not run	not run
25	The staff commands the lab uses (add item, add creature, teleport, set skill)	not run	not run	not run	not run

How to run it

launchers\dev\server_lab.bat row modernuo sets the server up (fetch at its pinned version, build, configure on this computer only, with a generated admin account), starts it, runs every case that has a scenario, stops it and rewrites this page. Details: tools/server_lab/README.md and the pins table.