FamiTracker, OpenMPT, FamiStudio, VividTracker, Furnace Tracker, Pata Tracker, 0CC-FamiTracker, FastTracker clone, ChibiTracker, DefleMask, MilkyTracker, AudioMulch, SoundBox, Psycle, Renoise, Prototracker, PixiTracker, GoatTracker, BassoonTracker, SVArTracker, BeRoTracker, Klystrack, Picatune 2, JITT64 are some alternatives to Schism Tracker.