Final Countdown is an side-scrolling action-adventure game developed and published by Demonware Softwarehaus for the Amiga, and released in 1990.

Players take on the role of a female space commander who must explore various levels of an alien spaceship (disguised as an asteroid).

To navigate around the levels, players can walk where possible, and use a jetpack to move between floors - if a lift is not available to do so - as well as to cross gaps and avoid certain hazards like active mines.

An orbital communication facility, designated Tercom I, attempts to scan the asteroid, but its onboard AI computer systems determine it is not a natural object, after all efforts to investigate it remotely are thwarted by an unknown entity.

Once aboard, she discover the asteroid is in fact an alien ship, which is slowly entering a collision course with Earth and is equipped with powerful weapons technology that could destroy not only the planet, but the Solar System as well.