Settings

Open Settings with the cog icon in the top navigation bar, or press Ctrl + .. The panel has five tabs: General, Paths, Source Ports, WAD Config, and Advanced.

General

Preferences

• App Theme. Switch between the visual profiles:
  • UAC PHOBOS, the default dark industrial look
  • MAYKR, a bright light theme
  • PLUTONIA TERMINAL, green phosphor with UAC red kept for warnings and destructive actions
  • CUSTOM, your own palette via the Advanced tab
• Database Link. Changes the navigation shortcut in the top bar to your preferred mod source (ModDB, ZDoom Forum, DoomWorld, Itch.io).
• Default View. Sets the starting view mode when you open the games page.
• UI Scale. Adjusts the overall interface scaling (default 100%).
• Launch Preview. Shows the generated launch command on the Install page and in the per-game settings modal.

Technical

• Auto-update. Checks for application updates on startup (on by default).
• Registry Lookup. When enabled, the app queries the online UAC Registry for mod file metadata when you add files to your catalog. Off by default.
• Manual update check. Check for updates on demand.
• Config Path. Read-only display of where settings.json lives on disk.

Paths

The directories the app uses. Each can be typed manually or set with the folder icon.

Use	Default
Wads	~/.config/uac/wads
Mods	~/.config/uac/mods
Saves	~/.config/uac/saves
Screenshots	~/Pictures/UAC Launch Control/screenshots

Note on ~: the tilde expands to your home directory. Windows: C:\Users\YOUR-NAME. macOS: /Users/YOUR-NAME. Linux: /home/YOUR-USER.

Source Ports

Manage the engine executables (GZDoom, UZDoom, Helion, Zandronum, and others). You can scan for installed ports, add one manually, or download a port directly inside the app. See Manage Source Ports and Downloading Source Ports.

WAD Config

The tab starts with a FreeDoom section. FreeDoom is a free replacement for the classic Doom game data, so you can get started without buying anything. Click FreeDoom (Phase 1 + 2) to download both IWADs, or FreeDM for the deathmatch version. The app fetches the files, verifies their checksums, and registers them automatically. An Installed badge appears once they are present.

Below that, each base game WAD you have imported gets a row:

• Icon. Click the icon preview to set a custom image.
• Launch Arguments. Flags such as -iwad passed to the source port.
• Additional Parameters. Extra engine parameters, e.g. -nomonsters -warp 01.
• Hide from Interface. Excludes the WAD from the sidebar and base game selectors. Useful for auxiliary files like voices.wad.
• File Source. The actual file path on disk (read-only).

The radio dot on the left of a WAD marks it as the default WAD. New protocols pre-fill their Base WAD from this selection.

Advanced

Custom Theme Editor

Active when App Theme is set to CUSTOM. Paste HSL variable overrides in CSS format to define your own colour palette. See the Theming guide for the full variable reference.

• Wrap in .custom { } surrounds your CSS with the required .custom {} wrapper.
• Reset to defaults fills the editor with the default dark theme values as a starting point.