Overdrive and saturation modules here.
On pulse waves these modules show no effect.

saw wave input

sine wave input

tri wave input

dspLoad 9.00/5.70/5.80
gentle saturation (vocals, drums, solo instruments, mastering).
max. poly 16

dspLoad 8.60/5.30/5.40
gentle saturation (highlite/add presence to a track w/o EQing)
max. poly 16

dspLoad 9.70/6.50/6.50
gentle saturation
max. poly 16

dspLoad 27.00/23.70/23.70
mild overdrive effect
max. poly 16

dspLoad 24.20/21.00/21.00
mild to agressive saturation/distortion
max. poly 15

dspLoad 17.20/13.90/13.90
mild to agressive saturation
max. poly 7

dspLoad 11.70/8.50/8.50
aggressive overdrive effect
max. poly 16

dspLoad 14.40/11.20/11.20
mild to agressive polygon-like saturation.
Type <-> number of sides of the polygon
max. poly 9

dspLoad 24.40/21.20/21.30
mild to agressive saturation. Designed to imitate low sample-rate samplers (-> Ripple control)
max. poly 4

dspLoad 10.70/7.40/7.40
mild to agressive saturation effect.
max. poly 15

Shapers
Distortion
Formantors
Harmonic
Osc_Shapers1
Osc_Shapers2
Saturation
Special1
Special2
Special3
Cheby&Additive
TerrainOsc