JCATS is a discrete event, constructive simulation that simulates actions and events of people and systems in specified environments. Its interactive design enables operators to initiate and influence events, although outcomes are stochastically determined utilizing user-defined statistical data. JCATS simulates the “effects” of actions and events to simulate combat at the entity level.

JCATS is data-driven, which enables users to rapidly define and refine their scenario parameters to ensure realistic simulation of their specific scenario.

Information Documents

Help Desk Support for JCATS

support [at] odo.llnl.gov


Supported Versions

JCATS: V17.0 (Current Version)

JCATS: V16.0

Version in Development JCATS V18.0

JCATS V15.X and older are no longer supported

How to Get JCATS

DOD Customers

Contact: Calvin Edwards
Office Phone: +1 (757) 203-6833
Telework Phone: +1 (757) 685-3092
Email: calvin.edwards.ctr [at] mail.mil

US Customers

Contact: Mark Piscotty
JCATS Program Lead
(001) 925-422-2052
support [at] odo.llnl.govtarget="_blank"

International Customers

Contact: Andrew Echols
PEO STRI Assistant Program Manager (APM)
International Programs Office (IPO)
International Cell and WhatsApp: +1-321-230-4935
NIPR:  andrew.w.echols.civ [at] army.mil
SIPR:  andrew.w.echols.civ [at] mail.smil.mil