Magesy

Bazille is a modular FM/PD synth, part of the upcoming Berlin Modular System currently being developed by Urs Heckmann. It is still in alpha phase, and the current version of the plugin is free for download and testing. Bazille v0.4 alpha is available both for Windows and Mac users.

ZebraCM is quite heavily stripped version of great VST Plug-in U-he Zebra2 (which costs 199 $). It has less oscillators, lfos and all other stuff I can't count ;) Also the GUI is different - Zebra CM has classic analogue style design while Zebra2 is more modern. But in the end - it doesn't really matter.

u-he ACE VSTi 1.0 | ASSiGN | 9.3 Mb

The software synthesizer ACE (Any Cable Everywhere) delivers top quality sound at a highly competitive price. The selection of modules and clear layout make ACE the ideal instrument for newcomers delving into the fascinating world of modular synthesis. The number of ways to connect modules together is practically infinite, and you will soon discover how much more fun it is to make your own sounds in ACE than in a non-modular synthesizer.