Spice+ is a general-purpose circuit simulation program, based directly on Spice3f5, developed at the University of California (Berkeley). It works under DOS (DJGPP), Windows (MinGW) and Linux.
Spice+ is strictly a non-profit project. The main purpose is to allow university student and people interested in to simulate their circuits without buying expensive simulation programs or being limitated by free trial versions of these softwares. Besides, source code is available, so students or researchers can use it as basis for their new models and algorithms.