Galactic Fleets - by far one of the best free games

Game: Galactic Fleets

In this amazing game made by Torin_Solo You can build up your own empire, take over other empires, destroy, trade, counqer.

The econmmy is run by the players, along with alliances which makes the game much more involved for the player and gives players power to help the game out a lot, i really reccomend playing this in your spare time.