Acid Robot is not a Swiss Army tool, a simple synth, but can produce nice sounds and rhythmic patterns.
It has a key tracking, multi-lane sequencer with step based smoothing, 2 oscillators with PWM on ALL waveforms (tri-saw-pulse), distortion, a multi-mode filter, LFO and envelope modulations on the main parameters, a stereo delay, randomization, MIDI learn, GUI resize,…
If the sequencer is bypassed, the modulation part is different and you can use it as a normal synth. If the seq is on, each step retriggers the decay envelopes and the gate time follows the decay time – adjustable with the D/R knob. Added a simple stereo delay to it. The L-R time ratio is adjustable from 2/3 to 3/2. The max feedback is 1, where it became a short time “looper”. The shortest times with higher feedback can add metallic timbres to the sound.
I created my patches in SaviHost, but there was a small issue with the saving. The best way was: saved the created preset to the fxb and txt banks, then closed and re-opened SaviHost. This way the saving/loading was always successful. If you can live with it, create your own patterns and sounds.
You can read more about the features and tricks if click on the HELP button – tried to add many useful info to it.
Here is the link to the zip (32 & 64 bit Win VSTi, made with an older FS Alpha, so maybe XP users can use it too):