Modular software & programmingMaxMSP, Reaktor, Pure Data, Jeskola BUZZ, and other modular programs. Any questions relating to these programs (patching, favorite ensembles) should be posted in this forum.
Any vst(i) and some time, patience and experimentation.
Whenever I see these kind of threads I'm sure the OP is jut asking which vst(i)'a come with presets that are like those used in x-genre. Truth is pretty much any synth vst will do whatever you need as long as you use it correctly. As with anything, learn to use the tools correctly and you'll get maximum potential from them.