HippoPlayer is described as 'music player for Mac, Windows and Linux that mostly focuses on music made for systems such as Amiga, C64, and gaming systems. While HippoPlayer will support MP3, FLAC, etc it's not the main target'. There are more than 10 alternatives to HippoPlayer for a variety of platforms, including Windows, Linux, Mac, Xfce and BSD. The best alternative is foobar2000, which is free. Other great apps like HippoPlayer are Audacious (Free, Open Source), DeaDBeeF (Free, Open Source), XMPlay (Free) and Qmmp (Free, Open Source).
DeliPlayer is a multi format, free audio player for Windows® 98, ME, NT, 2000 and XP. It plays all sorts of music, modules and samples with high quality, while providing a powerful but easy to use user interface.
The Extended Module Player, or xmp, is a portable command-line module player. Xmp plays many mainstream and obscure module formats including Protracker (MOD), Scream Tracker 3 (S3M), Fast Tracker II (XM), and Impulse Tracker (IT).