How it started
Conception
Chicago-based FASA Corporation's original 1984 game focused on enormous robotic, semi-humanoid battle machines battling in a science-fiction feudalistic Dark Age setting. The game was at first called Battledroids. The name of the game was changed to BattleTech in the second edition because George Lucas and Lucasfilm claimed the rights to the term "droid"; the machines themselves were renamed BattleMechs from the second edition onward.
The game components included:
First edition: two full-color terrain maps, 48 stand-up BattleMech counters, four sheets of playing markers, plastic counter stands, dice, and a rule book.
Third edition: two color maps, a pack of record sheets, and fourteen 2" plastic miniatures of various BattleMech war machines.
Fourth edition: two rule-books, a booklet of record sheets, 48 stand-up playing pieces, and a sheet of 144 insignia stickers.
From Wikipedia’s article on Infinite Game Publishing, shared under CC BY-SA 4.0.2