There are available over 120 VST instruments and effects, Kontakt and standalone softwares for creating, manipulating etc drum loops.
Visit this page and you’ll be amazed of how much freeware material is available on the internet.
Some of my favourites:
- XLN Audio – Addictive Drums
- Psychic Modulation – Wavtransit
- Udokorn – FlexSnare
- Tweakbench – Toad
- dblue – Glitch
- GTG – Drum Sampler 1
- Odo Synths – Dr-Fusion 2
- Drummer Modus Team – Dr. Modus
- Propellerheads – Rebirth RB-338
- Yellow Tools – Independence FREE