Letter: U
- uade - Unix Amiga Delitracker Emulator
- uade-devel - Development files for uade
- uade-mod2ogg - Encode music modules to ogg/mp3/flac etc
- ufoai - UFO: Alien Invasion
- ufoai-data - UFO: Alien Invasion data files
- ufoai-doc - UFO: Alien Invasion user manual
- unace - A tool to extract ace archives
- unrar - Utility for extracting, testing and viewing RAR archives