Mechaton is a LEGO miniatures game styled after Battletech or other mecha/robot miniatures battle games. It was invented by Vincent Baker.
Players construct mechs from LEGO parts, fashioning weapons, shields, jump jets, etc. After construction, dice are assigned for initiative, attack, movement, spotting, and defense, in accordance with the accoutrements the mechs have. Battle is carried out using rulers or on a hex grid. Damage reduces the dice available until the last one is eliminated.
The objective of the game is to have the highest score at the end of the game. The length of the game is determined by the "Doomsday Clock", which automatically ticks down with every turn, and which can be ticked down further by the players. Points are based on number of mechs and objectives held - you can reduce an opponent's score by destroying their mechs, but the only way to gain points is to capture their stations.
Opposing forces are balanced based on number of mechs and number of attachments each force possesses. Forces with fewer mechs and attachments begin with more points, and are therefore on the defensive. Forces with more mechs and attachments start with a points deficit and must capture objectives or destroy the defender's mechs in order to gain the lead.