Supremacy

Supremacy (called Overlords in the states and Supremacy: Your Will Be Done in Europe) by Probe Software came out in 1990 and took up two disks. You have a pretty simple (or at least simple sounding) main objective to this game. You have to take control over a solar system that your opponent controls so that you can ultimately obtain complete supremacy (and bragging rights).
There are four levels in the game and each level has its own enemies and number of planets.

You do not have real control over your units, but it is an early example of the real time strategy and fighting in the video game era. In between the planets that you and your opponent control, there are a number of “dead” planets that you have to take control over while on your way to conquer your opponent’s planets. The number of dead planets that lie in between you and your opponent’s planets depends on the difficulty level that you set ahead of time when you start the game. So the higher the difficulty level, the more dead planets there are between you and your opponent and the lower you set the difficulty level, the smaller the amount of dead planets there is.
When you conquer a planet, you have to adjust the planet’s economy and get this thing called a terraformer and start terraforming the planets until there are no dead planets left. After you are done doing this, the real fun begins. Once you and your opponents have claimed all the dead planets and reshaped their economy, you then have to get your own deadly military put together (so does your opponent). After your have your deadly militia set up, you can then go start fighting each other over the planets that the other person owns and controls. After either you or your opponent has conquered and terraformed all the planets in the solar system, the winner is declared. You have to have completely taken over every planet in the entire solar system before you can say it’s game over.
The main themes song for this game is awesome and so is the sound in the game. It was composed by Jeroen Tel and it amazingly reached the 52nd spot among 30,000 in the High Voltage SID Collection. It is recognized as one of the best SID tunes ever made. In the early 90s they recognized this game as one of the most important strategy games because it made way for other real time strategy games such as SIM City and Civilization.