Don't settle for only part of the Battlespace!

MACE is a powerful yet easy to use full-spectrum computer generated/semi-automated forces (CGF/SAF) simulation.



BSI's low-cost alternative to server-based DIS radios.

  • Fully DIS compatible
  • No server required, use one or more on PCs and tablets,
  • Comm plan loading and editing on any radio.
  • Terrain masking, Fresnel zone, diffraction over terrain... and more.

Learn More


Get the best in Electronic Warfare Simulation

MACE with Transparency

MACE options include physics based emitter audio generation and a full suite of virtual Electronic Warfare equipment

Joint Terminal Attack Controller

Don't Settle... Get the Best in JTAC Simulation!

With dozens of fielded systems throughout the Combat Air Forces, MACE is rapidly becoming the standard for JTAC training.

UAS/UAV Mission Training

When combined with an Image Generator such as MetaVR's Virtual Reality Scene Generator (VRSG), MACE is ideally suited for standalone or distributed UAS/UAV training.

Upcoming MUG October 5th-7th

Open to all MACE users, please join us at the MACE Users Group (MUG) meeting where we will be demonstrating and training the latest capabilities of MACE 2020R1, showcasing our newest MACE plug-in ARMOR (a free add-on to MACE) along with several commercial image generators, and discussing the MACE road map for 2021 and beyond.​



BSI is proud to introduce the Augmented Reality Mission Observational and Rehearsal (ARMOR) plug-in, a free extension to MACE that allows users to visualize the synthetic battlespace in a 3-dimensional screen view, in virtual reality (VR), and augmented reality (AR).

Emulated Military Equipment (EME)

BSI takes a unique approach to the design and development of Emulated Equipment. We feel it is essential that our combat forces with equipment that emulates the form, fit, and function of devices they will use in the field, but we are also committed to keeping the cost and time to develop equipment as low as possible.  Learn more.

BSI in the News

2021 MUG Returns Again to the Emerald Coast

MACE User's Group (MUG) Tuesday October 5th - Thursday October 7th 2021Due to the current travel restrictions and efforts to contain the spread of the coronavirus (COVID-19), we have decided to postpone the MACE User's Group (MUG) previously scheduled for 21-23 April. We will keep you all informed as soon as we have...

MACE 2019R2 What’s New

MACE 2019 R2 RELEASEWhat's New BSI Is Very Happy to Announce our MACE 2019R2 Release!Hello everyone! Today we are happy to announce that MACE 2019R2 is now available for download as an official release. Before we get into our summary of the new features, I would once again like to extend a sincere “thank you” to...

MACE Supporting Joint IADS Survivability Testing

  MACE Used in Joint Aviation Multi-Ship IADS SurvivabilityValidation Quick Reaction Test(JAMSV QRT)article originally posted on USNI News     Creating Air Combat Missions in Minutes (MACE/ARMOR)​NAS China Lake – Jan. 15-30, 2020 – As the U.S. Army prepares for the possibility of a Large Scale Combat...

BSI @ I/ITSEC 2019

 BSI will be in Booth #1348 for I/ITSEC 2019Monday December 2nd - Thursday, November 5thOrange County Convention Center, Orlando, FLPlease also join us for our annual I/ITSEC MACE Users Group (MUG)on Tuesday December 3rd, 1000-1100in the USAF Conference Room (#S329)    Please join us in Booth #1348...

Cubic and BSI Sign MOA for LVC Collaboration

  MACE Used in Joint Aviation Multi-Ship IADS SurvivabilityValidation Quick Reaction Test(JAMSV QRT)led by the U.S. Army Combat Readiness Center     Creating Air Combat Missions in Minutes (MACE/ARMOR) BSI is proud to have designed and delivered a Combined Arms Virtual Environment (CAVE) Joint Terminal...

Great Turnout at the BSI Emerald Coast MUG

MACE User's Group (MUG) Held Tuesday, April 30th - May 2nd, 2019Largest Turnout Yet at the Emerald Coast MUG, Fort Walton Beach FloridaThanks for Joining Us!Thanks to all who joined us for another successful MACE User's Group (MUG)!  Our community is growing quickly and the MUG is a great opportunity to interact...

BSI MUG Returns to the Emerald Coast

MACE User's Group (MUG) Tuesday, April 30th - May 2nd, 2019 Please join us at the Emerald Convention Center, 1250 Miracle Strip Parkway SE, Fort Walton Beach Florida Please RSVP by April 19th, 2019 Open to all MACE users, please join us at the MACE Users Group (MUG) meeting where will be demonstrating and training...

MACE Delivers Again for JTC TRS

  BSI delivers three (3) more MACE software bundles to QuantaDyn for additional Joint Terminal Control Training and Rehearsal Systems (JTC TRS) article originally posted on USNI News     Joint Terminal Control Training and Rehearsal Systems (JTC TRS) BSI is proud to have designed and delivered a...

Customer & Installation Base

Click on the links below to learn more!

“Two more really successful sim periods today. I love this software!”

MACE User, Grayling Air Gunnery Range, Michigan ANG

“9-Line is easily laid out, works well, is fairly intuitive (I figured it out without even looking at the manual initially).”

MACE User/JTAC SME, Air Force Research Lab, Wright-Patterson AFB, OH.


“We operate ~80% standalone, which is why MACE is so critical to us… the interface has to be simple, reliable and effective – all proven attributes of MACE.”

MACE User, Grayling Air Gunnery Range, Michigan ANG

“MACE is our Swiss Army SAF”

MACE User, Ft. Campbell, KY.

“The Call For Fire tab/section is outstanding. Everything works, when it is supposed to work. The different options for single rounds, continuous suppression for X minutes, fire X number of rounds, etc, is excellent. Munition selection is a snap. Also, the corrections that are available, such as add/drop/left/right based on either observer/tgt or gun/tgt lines is excellent, and I have never seen a sim do this well/efficiently.”

MACE User/JTAC SME, Air Force Research Lab, Wright-Patterson AFB, OH.

“MACE is absolutely amazing one of the other JTACs here knows how to build scenarios and task aircraft after only touching the system three times. It pretty much runs itself for the most part.”

MACE User/JTAC SME, Aviano AB Italy

“Everything CAS-related works very well”

MACE User/JTAC SME, Air Force Research Lab, Wright-Patterson AFB, OH.

What is the Modern Air Combat Environment (MACE)?
MACE provides a physics-based full-spectrum Computer Generated Forces (CGF) / Semi-Automated Forces (SAF) simulation engine used to drive synthetic environments within the Air, Land, and Surface domains.  Key features found within MACE include:

  • User configurable platforms, weapons, and emitters (to include customization of RADAR pulse, scan, & beam characteristics)
  • Standalone Joint Terminal Attack Controller (JTAC) training that includes detailed Call-for-Fire (CFF) and 9-Line interfaces.
  • Integration with commercial Image Generators
  • Global Battlespace supporting high resolution digital terrain and industry standard raster and vector formatted mapping visuals
  • Energy-based aerodynamic modeling and physics-based weapons delivery
  • Detailed threat modeling to include simulation of entire Integrated Air Defense Systems (IADS)
  • Integration with existing mission planning systems
  • Support for industry standard simulation protocols
  • And more…

Check out the MACE product pages for more details.

What is MACE-EW?
MACE-EW is an enhanced version of MACE that includes parameter driven Electronic Warfare modelling.  Included in MACE-EW is high-fidelity emitter audio and virtually simulated equipment to include:

  • Radar Warning Receiver
  • Panoramic Receiver/Self Protect Jamming System
  • HARM Interface Panel
  • Countermeasures Dispensing System
  • Communications Jamming System
  • Towed Decoy
  • Streaming KML for Google Earth Viewing
  • User Extensible w/Parameters Editing Tool
  • Full Suite of Navigation Displays
  • And more…

Check out the MACE-EW product page for more details.

What is the VIPER Radio?
The VIPER DIS Radio is a low-cost alternative to server-based DIS radios.  The VIPER Radio can be associated with any DIS-based entity on a simulation network and supports the following key features:

  • Supports up to 100 simultaneous transmit/receive frequencies
  • VOX and Push-to-Talk (PTT)
  • Set radio power, signal bandwidth, sensitivity and dynamic range
  • Supports modulation, frequency hopping, pseudo noise, and time hop
  • Supports cryptography settings (system & key)
  • Calculates propagation loss and terrain masking
  • Custom UI skins and modeling of specific radio systems (such as the PRC-117G, PRC-148, & PRC-152)
  • Run multiple VIPER Radios on a single PC for a reduction in associated hardware costs.

Check out the VIPER DIS Radio product pages for more details

Does MACE Support a User-Editable Database?
Yes it does.  Every version of MACE ships with the Mission Object Configuration Tool (MOCT) which allows in-the-field configuration (editing and creation) of MACE mission objects to include:

  • Platforms – entities that move such as aircraft, vehicles, and lifeforms.
  • Sites – stationary entities such as radar and Surface-to-Air Missile (SAM) sites.
  • Cultural – stationary entities such as buildings and trees.
  • Equipment – equipment models such as weapons and sensors
  • Aerodynamic Models – includes ballistic, missile, energy-maneuverability and flight modeling
  • Electronic Warfare – Threat libraries, emitter, RADAR, and transmitter definitions; includes beam, scan, and pulse-level definitions.

How About Third-Party Enhancements?
Yes, BSI works closely with our partners to support third-party enhancements to MACE and other BSI products.  In addition to using the MACE Mission Object Configuration Tool (MOCT) directly, BSI supports additional product level additions to include:

  • Heads-Up-Displays (HUD) – Custom HUD’s for MetaVR’s Virtual Reality Scene Generator (VRSG).
  • Custom VIPER DIS-Radio Skins.
  • Signal processing tool’s for MACE’s Signal Generation Engine (SGE).
  • Integration of simulation interchangeability standards.  MACE supports DIS and the TENA protocol’s directly, and HLA through third-party DIS-HLA gateways.

We’re also working hard on a new MACE API that will allow for full integration of third party applications, and direct integration into the MACE application processes allowing custom product enhancements and full MACE control.  Drop us a quick e-mail and we’d be happy to discuss our plans in greater detail.

Does MACE Integrate with Third-Party Image Generators?
Yes we do.  BSI provides a fully featured and custom integration with MetaVR’s Virtual Reality Scene Generator (VRSG).  MACE also supports the industry standard Common Image Generator Interface (CIGI) that allows integration to other image generation applications that include Bohemia Interactive’s VBS3 product-line.
Integration with Virtual Simulations...
MACE and MACE-EW support the Distributed Interactive Simulation (DIS) and Test and Training Enabling Architecture (TENA) protocols directly.  MACE, through it’s DIS interface has additionally been Combat Air Forces Distributed Mission Operations (CAF-DMO) accredited.  Through these interoperability standards, MACE inherently supports distributed mission training exercises.

The MACE applications have been directly integrated into the following virtual training environments:

  • JTAGSS – Joint Theater Air-Ground Simulation System
  • SOTACC JTAC Simulators – Special Operations Terminal Attack Controller Courses
  • AAJTS – Advanced Air National Guard JTAC Training Systems
  • Air National Guard’s Distributed Operations Training Center (DTOC)
  • NAS Fallon Multi-Service Supporting Arms Training (MSAT) dome and Combined Arms Virtual Environment (CAVE)
  • UK’s Joint Forward Air Controller Training and Standards Unit
  • …and many more, refer to the customer and installation base map on our homepage for more installation sites.

In addition to integration with existing virtual training environments, MACE-EW includes a suite of avionics and combat virtual displays that includes:

  • Radar Warning Receiver
  • Panoramic Receiver/Self Protect Jamming System
  • HARM Interface Panel
  • Countermeasures Dispensing System
  • Communications Jamming System
  • Towed Decoys
  • … refer to the MACE-EW product page for a full listing of included virtual emulations

Be sure to check-out BSI’s Virtual SA-8 training station as built for the Polygone Electronic Warfare (EW) Range near Landstuhl, Germany.  The SA-8 operator stations were developed to closely mimic the operation of an actual system, and have been designed to acquire, track and perform a virtual missile launch in a virtual or live training exercise.

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MACE, Viper, DIScord and the BSI Logo are registered trademarks of Battlespace Simulations, Inc.