Junkyard Wars is a print and play game available as a downloadable pdf. It consists of several decks of playing cards, counters to represent the players bots and playing mats to keep track of all your resources and upgrades.
[From the Manufacturer]
Junkyard Wars is a tactical game of battle and resources gathering where players take on the role of a robotic factory and the Bots that it manufactures to act as its slaves.
The game consists of players trying to both out maneuver their foes, while at the same time trying to gather the needed resources that are required to both upgrade their Bot slaves and to achieve total victory over their foes. Nothing short of the destruction of the enemy factory will see you winning the game, so play smart and be ruthless in your machine like drive to survive.