Native Instruments Reaktor (1999)
The best known of all software modular systems, originally, Reaktor was a merging of two separate, but similar products. Generator was a modular environment for synthesis, while Transformator was aimed at sampling. In 2003, Native Instruments brought in the developer of the similar Sync Modular who introduced much more depth to the program.
Immensely popular and wildly inspiring, a massive community library makes Reaktor a comprehensive and ever-growing sonic toolbox – even if you don’t care to make your own devices.