From Video Game Music Preservation Foundation Wiki
Loss is the tune that is played after you have been defeated in a game and navigate the post-game achievements screen.
The track was composed by Stephen Rippy using a Boss DSS-330 synthesizer and an E-mu ESI-32 sampler. Finally, the mixing and editing was done using SoundForge. A MIDI version of the song was also composed in Cakewalk that was used when the game CD wasn't in your CD drive. It was also used in the demo version of the game.
A remixed version of this track was used in Age of Empires: The Rise of Rome (W32), called Loss (Mix 2).
The song title has been confirmed by Stephen Rippy.