Simulation Software for Science and Engineering

FEMTC, the Fire and Evacuation Modeling Technical Conference, focuses on bringing together professionals from industry and academia to present and discuss leading ideas and projects around the world. Thunderhead Engineering will host FEMTC for the sixth time since the inaugural event in 2011. Read More...

Would you like to improve your skills with PyroSim and/or Pathfinder? Dave McGill has worked with Thunderhead Engineering to provide training to hundreds of attendees for many years. We are excited to announce the latest dates, viewable at our online schedule, for his acclaimed courses in an online workshop format.

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Prices for all license types of PyroSim and Pathfinder are scheduled to increase on January 1, 2022. All quotes issued before this date will retain 2021 pricing throughout their normal 30 day validity period, even if that extends into early 2022. If you are considering a new purchase, or if your annual subscription is expiring ... Read More...

Sometimes Pathfinder models include stair access for occupants which are modeled without any of the user-defined stairs tools. In Pathfinder 2021.4 this modeling technique is automatically detected and occupants traversing the stairs now move according to stair behavior appropriate for the determined riser and tread distances. With the inferred stairs feature, Pathfinder users now have more flexibility in creating complex stairs without sacrificing in movement accuracy. Read More...

The latest updates for PyroSim, Pathfinder and Results are available now. The 2021.3 release focuses supporting the latest industry trends through the FDS 6.7.6 release and video rendering technology, while also providing advanced usability and simulation options for Pathfinder. Read More...