Books like battlefield earth

Battlefield Earth: A Saga of the Year 3000is a 1982 science fiction novel written by L. Ron Hubbard, founder of Scientology. He also composed a soundtrack to the book calledSpace Jazz.

In the year 3000, Earth has been ruled by an alien race, the Psychlos, for a millennium. The Psychlos discovered a deep space probe with directions and pictures mounted on it and the precious material, gold, that led them straight to Earth. After one thousand years, humanity is an endangered species numbering fewer than 35,000, and reduced to a few tribes in isolated parts of the world, while the Psychlos strip the planet of its mineral wealth. Jonnie Goodboy Tyler, a young man in one such tribe, lives in the shadow of the Rocky Mountains. Depressed by the recent death of his father and both the lethargy and sickness of most of the surviving adults in his tribe, later determined to be caused by radiation leakage from decaying nuclear land mines, he leaves his village to explore the lowlands and to disprove the superstitions long held by his people of monsters in those areas. He is captured in the ruins of Denver by Terl, the Psychlo chief of planetary security.