Enemy Nations is areal-time strategy game from Windward Studios. While well received by various game publications the bankruptcy of the publisher forced Windward to sell it exclusively on their company website.

The development of the Hyperspace-Drive triggers a gold rush-like colonization attempt by Earth governments, only to find that habitable (the game takes these as Earth-like) planets are either homeworlds for other sapient species, or colonies of early-evolved species.

Years of build-up and exploration bears fruit: A habitable, rich and lush world with no sentient race is found. However, almost every race intends to colonize it, and soon a full-scale Galactic war will erupt. To solve the bloodshed, the sapient races agree to a competition:

Every race would dispatch a Rocket Ship with a pre-determined size, mass and equipment, stocked with materials, personnel and equipment to create a city analogous of modern Earth technology and infrastructure. Then without interruption from outer space, the base-cities would engage in conflict, with the victor being granted the ownership of the planet. Of course, it is your duty to ensure a new world for your species to claim.