Henry Poon's Blog

Axis and Allies 1940 Battle Calculator/Simulator

This is a program I made for calculating the odds for battles in Axis and Allies 1940.  It follows the combat rules for the game and counts the average probability of victory/defeat including IPC values lost. This program is released under the GPL.

Download: https://sourceforge.net/projects/aa40battlecalc/files/Battle%20Calculator%20Binary/ (requires Java)


  • Land and naval battles
  • Coastal bombardments from Cruisers and Battleships
  • Option for ground units that must survive to capture the territory
  • Option for aircraft that must land on an Aircraft Carrier
  • User specifiable option for how many trials to do
  • Follows combat rules from Axis and Allies 1940 (Europe and Pacific) such as:
    • Regular land battle rules (dice rolling)
    • Order of taking casualties
    • Submarine first strike and can be negated by Destroyer
    • Planes cannot hit Submarines unless the planes are accompanied by a Destroyer
    • Artillery-supported Infantry and Mechanized Infantry
    • Fighter-supported Tactical Bombers
    • Wounds on Battleships and Aircraft Carriers
  • Statistics for:
    • Attacker/defender win/loss/tie percentages
    • IPC cost of both armies
    • IPC loss of both armies
    • Units remaining of both armies

SourceForge Page: http://sourceforge.net/projects/aa40battlecalc/

Source Code: https://sourceforge.net/projects/aa40battlecalc/files/Battle%20Calculator%20Source/

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  1. James 2010-12-26


    I downloaded your files, yet can not figure out how to get them to work. I unzip them and just get a folder full of java files and another with a manifest.mf file in it.

    How do I use this absolutely fabulous tool?


  2. Greg Jones 2024-04-17

    Hi there, I have an idea for creating a spin-off of A&A or HBG’s Global War game which would use a piece of software as either a play aid for the board games or go full computer game, not sure which yet. Would you be interested in chatting about this and helping me figure out the feasibility and steps?

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