Download Creakbox Bassline:

Free TB-303 VST Emulation

The Creakbox Bassline plugin by bioroid (Bad Boys extension) is an old and almost forgotten little gem. It is, in fact, the best free Roland TB-303 VST emulation ever made! The Creakbox VST plug-in is in essence a mono synth with a built-in sequencer, that brings back the Detroit and Chicago sound of the 80's in no time. Like the original TB-303 you can't play the Creakbox Bassline like a normal synthesizer, instead you have to program a pattern in the built-in sequencer and let it run...
Bioroid stopped all plug-in development back in 2004 and released the source code for Creakbox Bassline synth. This Bad Boys extension is a vastly improved version of the original VST plugin by bioroid. It features a bank holding up to 100 different patterns, and an extension menu with several filters, overdrive, saturation, distortion, and delay.