Heroic Journey Publishing produces the Mecha RPG. Purchase the Mecha RPG core book at DriveThruRPG here.
Here are cover and interior art for Heroic Journey Publishing's Mecha RPG supplement Reign of the Descended now available at DriveThruRPG!
Mecha Mercenaries is a supplement for the Mecha RPG. It is available for purchase it at RPGNow.