Each player's goal is to assemble a complete time machine (requiring a weapon, shield, power source, and chassis), and travel back to the day the U.S. Patent Office opened, so as to secure the first US patent.

The first actual U.S. patent was issued on July 31, 1790, to Samuel Hopkins for the manufacture of potash.

The game's cover art states that "if you have a time machine, it doesn't really matter who invented it first.

Unfortunately, proving prior conception when time travel is involved may present difficulties to the inventor.

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