Session Drummer 3 was included as a core component of (and later, the free version, Cakewalk by BandLab). It is not a standalone application; rather, it is a DPI (Direct Physical Instrument) and VSTi (Virtual Studio Technology Instrument) designed to play back multi-sampled acoustic drum kits.
The "Free" version offers one of the best-sounding kits in the industry. Session Drummer 3 Vst Free- Download
SD3 is lightweight. Unlike modern drum samplers that can eat 20-30% of your CPU, Session Drummer 3 runs on almost any computer from the last 15 years. Session Drummer 3 was included as a core
If you are already a Cakewalk user, SD3 is deeply integrated. You can drag and drop patterns, adjust tempo on the fly, and use the built-in step sequencer. the free version