OpenSIMPPLLE is a spatially explicit, landscape level, dynamic simulation system that is designed as a management tool to facilitate the use of landscape ecology concepts in designing and evaluating land management alternatives for a range of planning scales.

Latest News

August 6th, 2021

Released version 1.5.1

  • Fixed broken link to user guide.
  • Fixed issue where GIS probability was always 0.
  • Fixed incorrect orientation of LAVA.
  • Fixed issue where treatment scheduler did npt display special areas or ownership.

August 13th, 2020

Released version 1.4.5

  • Added a feature that allows the user to check for processes which are very unlikely to occur.
  • Added prompt to the command line allowing user to overwrite or rename output files.
  • Added Road Status, Landtype, and Elevation data to Slinkmetrics file.
  • Fixed bug where a simulation could not be ran without selecting an output directory.
  • Fixed bug where redundant density value options were displayed when editing logic data.

August 1st, 2019

Released version 1.4.4

  • Fixed area label on creating new area and set the file chooser default location for the attribute to be the same as the spatial.
  • Fixed null output data where multiple runs was greater than 1.
  • Added a prompt and ability to overwrite simulation output.
  • Fixed index out of bounds issue for report periods on CLI.
  • Added catch exception for saving results when runs is greater than 1.

April 26, 2019

Released version 1.4.3

  • Timestep zero now reported
  • Saving pathway files to a directory no longer overwrites directory contents

Upcoming Features

Fall 2021

  • Multithreading

Supported Geographic Areas

US map showing the regions covered by OpenSimpplle



The work on OpenSIMPPLLE has been partially supported by the USDA, Forest Service Northern Region, and the Rocky Mountain Research Station under agreement 12-CR-11015600-072.