Battlemech
REMLAB Web Mech Designer v.b.2912.beta
REMLAB is a fully functional cross-platform web-based Battlemech designer for the tactical board game Battletech.
ART (Artillery Resolution Tracker) v.2.0
ART (or ARTy to his friends) is a much more advanced, but still FREE, program that allows you to plan artillery strikes, based on the standard BattleTech artillery rules.