From here, you can download a free version of our Skilift Optimizer 2009 system. It comes bundled with the Excel spreadsheet interface, executable for command-line operation, and a .MOD file for viewing in SIGMA. Please note, you may need a professional SIGMA license to legally run this software. For help on running it, please see our tutorial page.

Click this button below to download your free trial in a ZIP format:

Disclaimer: Due to the nature of the Excel macro, please run the macro while Excel is in windowed mode (not maximized) or the confidence interval information may be hidden behind the output plots.

If you are interested in learning more about the technical details of our simulation system, you may download a comprehensive final report that was published upon the release of the Skilift Optimizer 2009. This report includes:

  • Detailed information on the data needed for running the model
  • Modeling assumptions
  • Detailed event graph and verbal desciptions (also see the interactive event graph)
  • Code-level model details
  • Information on collecting necessary data
  • A run control strategy
  • Preliminary sensitivity analysis with sample data
  • Details on our project management techniques

We are offering this report at no charge - please click the button below to download the report in PDF format:


Skilift Optimizer 2009 is the complete, easy-to-use simulation system designed to help you get the most out of your ski resort. On this site, you will find details on our underlying model, information on the creators, a helpful guide to its use, why you should consider the Optimizer, and ways to try it for yourself.