Darker is a single-player futuristic flight simulator video game published by Psygnosis in 1995 for MS-DOS.

The game takes place over a number of missions on the planet's surface and in tunnels.

The people of Delphi are not militarised, having never had reason for military action, and so technology for combating the Halon menace is developed over the course of the game.

The Halon people are revealed to be invading in order to expand their cities away from the light side, which they have polluted beyond the point where it can sustain life.

Because of the scarcity of energy on the dark side of the planet, power to the shuttle is transmitted wirelessly through a network of pylons situated on a regular grid across the city.