Installing the Lyonspyre Client¶
The Lyonspyre Client is a custom client that ships with richer in-game panels (talents, leaderboard, profile, etc.). The launcher bundles everything — you do not need a separate UO Classic installation.
Download¶
That single executable is a self-updating launcher. Drop it anywhere, double-click, the rest happens automatically.
What gets installed¶
Files land under %LOCALAPPDATA%\Lyonspyre\ (typically C:\Users\<you>\AppData\Local\Lyonspyre\):
| Path | What's there |
|---|---|
client/ |
The Lyonspyre Client executable + DLLs |
uo-data/ |
Curated .mul / .uop files (Eri art, custom map) |
client/Data/Plugins/Lyonspyre/ |
Per-player settings (cooldown rules, bandage bar position, journal tabs) |
Any existing UO classic install you have is not touched.
First launch¶
- The launcher self-checks for updates and patches.
- Once you see "Ready to play", click Play.
- The game window opens at the login screen.
- Enter any username / password — accounts auto-create on first connect.
Multi-clienting¶
We allow two clients per IP/computer. The launcher is happy to spawn a second instance; both clients run with isolated caches and won't step on each other.
Troubleshooting¶
The launcher says 'update failed' / 'sha256 mismatch'
Delete %LOCALAPPDATA%\Lyonspyre\client\ and re-launch. The launcher will re-download from scratch. This usually means a corrupted partial download from a flaky network.
The game crashes on launch
Crash reports auto-upload to our cloud collector. If you can, share what you were doing in Discord #bugs and we can pull the trace.
I see a vanilla UO splash, not the Lyonspyre login art
You're on an old launcher build. Click Update in the launcher, or close and re-launch — the launcher will pull the latest manifest.