STochastic Engine for Pathway Simulation


STEPS 3.0.0 and above can be downloaded via

Please check the file for installation instructions. If you have any question regarding STEPS implementation and/or modeling using STEPS, please leave your question in the STEPS support Google group, or email us.

Repository for validations

Repository for examples

SourceForge (old repository):

Source code and Binaries of STEPS 2.2.0 and below can be downloaded via

Other Distribution:

Christoph Gohlke provides Windows binaries for STEPS 2.0.0, which can be downloaded via

A diff patch for Visual Studio 2008 is also provided here.