7th Legion is a real-time strategy video game for Microsoft Windows, developed by Vision Software and Epic MegaGames and published by MicroProse in 1997.

To do so, the players have to amass funds to construct various buildings and war-machines, while recruiting foot soldiers to combat the enemy.

Rampant overpopulation and overuse of Earth's natural resources have regressed the planet's ecosystem to a critical point.

The governments of Earth enact the Planetary Evacuation Program (PEP) to vacate the world in vast colony ships, leaving the planet to heal.

As the game begins, the seventh generation of the Chosen - those descended from the evacuees - return and aim to conquer the planet for themselves.