The Last Of The Free is the work of the author of Thunderstruck, released at the same time, and it shows. Someone has saved themselves a lot of programming time.
In The Last Of The Free, the hero is Clement the Ordanoid Droid, who is the last of his kind - his companions have been wiped out by the aggressive and defective Proleoids. Unknown to their human creators back on Earth, the Proleoids are now running amok, and it's up to Clement to get back and warn them.
As in Thunderstruck, the hero can run, jump and pick up and use objects (using the same keys - play one game and you've virtually learned the other). There are puzzles to solve, distributed throughout the 55 different screens, and aliens to avoid.
But there are enough differences to make The Last Of The Free a different game. There is much more emphasis on arcade action - the pace is considerably more frenetic, the screens much livelier and more busy, with moving platforms, electric currents, ladders and loads of Proleoids scurrying about. It's played at a much faster speed and requires fast reflexes as well as wits.