VSTron

VSTron is a free plug-in that is well suited to create special FX sounds.

VSTron is capable of producing different kinds of effects such as laser sounds, fast LFOs, ascending/descending sweeps, filtered madness, bubbling bleeps or attacking ramps.

Initially inspired by the Korg Monotron the VSTron includes 1 Osc (Saw, Sine, Triangle, Ramp, Pulse, White Noise and Pink Noise) and 1 VCF Osc with 4 modes (Low Pass, High Pass, Band Pass, Band Reject) as well as 1 Main Envelope. To further modulate things you have 2 Envelopes and 2 LFOs that can be individually assigned to different parameters and some built-in effects such as Drive, Delay and Chorus.