Shattered Suns

When the Qalani and Trexites empires combine forces, Captain Max of the Statian fleet is the only one who can stand in their way. A veteran drafted back into service, he has a knack for dealing with overwhelming odds and evil empires. This might be a bit easier if he knew where his fiancee was. Her ship disappeared during the initial attack, and has not been seen since. The story is given between missions, and lets you choose your responses, letting you have some control over the story.

Shattered Suns is a 3d real-time strategy game, focusing on starship combat, with highly-customizable and upgradable ships and space stations. Starting from a basic ship or station, freely upgrade any of the components, and add (customizable) weapons or construction ability to any ship. The space stations orbit planets and moons, which themselves orbit stars. This is not purely cosmetic. Over the course of a battle, the moons and planets will shift, requiring changing tactics. Unlike most RTSes, resources and ships can be taken from mission to mission, creating larger strategic goals. There is also a skirmish option, with the game modes Annihilation (destroy all enemies), 30-min and 60 min (survive), and 50k-wealth and 100k-wealth (acquire that much resources).