Offline
Slovakia / European Union

It is free and can do chiptunes too...
http://www.audio-simulation.com/?page=product3

From web>
"Up to three oscillators can be used for each voice, where every oscillator is generating sine, triangle, sawtooth, pulse (OSC2&3 square) or noise waveforms. Linear frequency modulation, ring modulation and hard synchronization are available between OSC1&2. You may replace the traditional waveforms with 16 bit mono samples, and use them as the source of ring and frequency modulation. A multimode filtering architecture is responsible for eliminating/exciting specified frequencies of the generated signal by supporting 2 pole lowpass, bandpass, highpass, 4 pole lowpass and formant filter modes. Three ADSR envelope generators (each one individual for the amplifier, filter and a user defined EG for general purpose), one LFO, vibrato and portamento are the modulation sections."

When somebody will tracking with it email me, we can change patches...

Offline
New York City

This is a very old one, I didn't know it went freeware now it used to be paid software.
You can make some cool acid basslines with it.

Offline
Slovakia / European Union

It is freeware now. And you can do cool synthtunes with it smile.
Old for sure. But it has build in synth so no VSTi support.
So it is cool for that. It is like virtual soundchip smile).