As seen in Hitsquad's Top 10 Free VST Virtual Instruments

The blooo is a VST™2.4 polyphonic software synthesizer plug-in for Windows based on the classic subtractive synthesis architecture. It is written in native C++ code for high performance even on "lighter" systems. Main features are:

• Up to 32 voices polyphony including portamento
• Two band-limited oscillators including Ring modulation and hard sync
• Four oscillator waveforms (sawtooth, pulse, sawpulse, sine) with shape control
• Additional white noise generator
• Two multi-mode four-pole filters (lowpass, highpass, bandpass, allpass, phaser) with resonance and panorama control
• Three envelopes (ADSR) with exponential slopes
• Three low frequency oscillators (LFOs) with tempo synchronization