Temper is a modern digital distortion plugin featuring a rich saturation stage and a unique phase distortion. Use the variable saturation curve to add warmth and edge to your sound, and let the phase distortion bring character and clarity through your mix. Temper also features a simple resonant lowpass filter and a feedback path to drive the intensity of the tone.
TesslaPro is a free signal saturator VST with added transient control. It works entirely oversampled and provides smoothest saturation effects.
TesslaSE is a free VST plugin that adds some gentle and pleasant saturation effects to the incoming audio.
HeadCrusher Free is a free saturation plugin. Use it on drums,vocals,bass,master track to add power or simply to destroy a track.
IVGI can deliver very soft and subtle saturation, that feels at home on the master buss. It is equally capable of very dense and dirty distortion effects to spice up single tracks.