Topic: MegaMek is an unofficial, online version of the Classic BattleTech board game.

[Software Santa]

MegaMek is an unofficial, online version of the Classic BattleTech board game.

MegaMek is an unofficial, online version of the
Classic BattleTech board game. MegaMek is a networked Java clone of BattleTech, a turn-based sci-fi boardgame for 2+ players. Fight using giant robots, tanks, and/or infantry on a hex-based map.

MegaMek is open source, free software. It is licenced under the GPL.

Current features include:

    * Network or hotseat play for 2 or more players
    * A somewhat cunning AI opponent for offline play
    * Choice of ground, atmosphere, or space combat, using Total Warfare rules
    * Many of the optional rules and technology from Tactical Operations, including advanced terrain and planetary conditions
    * Map board selection and editing
    * Map boards based off official map packs included
    * Mech selection and support for some mech editors
    * Most official mech designs included
    * Color graphics

System Requirements
MegaMek is programmed in Java and will run on any system with a compatible Java Virtual Machine. It has been tested on Windows, Linux and MacOS X.

http://megamek.sourceforge.net/