Peace ha Peace is for fary tales, War is the only answer.MuhahahahahahaYay i like war its fun. even if there were more ways to win everyone would still go for the fight if anyone disagrees please quote me and say it to my face.Supcom FA rules dude(no way of using diplomacy to win wars)
Actually, that would be me... I'm much more interested in the non-combat aspects of strategy games than I am in the "war".
Quite a few "non-combat" victories are possible, even within the scope of the game's "everybody hates everybody else" setting.
These are a couple of ideas for technological victories, one for each group. They kind of suck, but oh well.
Advent: Through the player's industrious efforts, the Will of Unity is finally made manifest. The Vasari colony ships and TEC factories at last fall silent, as the minds of your enemies are overwhelmed by the sheer immensity of the fully-awakened force. The few who must the will to fight on are quickly defeated by those who were allies, or eventually snap under the constant psychic pressure.
Vasari: You need not run anymore. The Empire's struggle is finally at an end. Thanks to increased study on the workings of Phase-Space, you have discover the means to send entire colonies into lanes, and to stay there. It will not be an easy life, but you will adjust, just as you did to a migratory life. In time, you might build a new Dark Fleet, one larger than before, if it strikes your fancy. Should your enemies manage to survive against the enemy that one pursued you, perhaps they may yet find a place in your society, as they did in the past. Of course, after the long war they most likely will not be as "valued" as they once were...
TEC: With balance finally established in what was once a tumultuous economy, there is little doubt as to your victory. The war may not be finished yet, but already the enemies' citizens eagerly devour the goods produced on your worlds. With new, more defense-oriented, factories already in construction, it is only a matter of time before the enemy cannot sustain their attacks. You will, at least, win through attrition. After all, it will not be long before you control not just the flow of credits, but the flow of food, toys, and multimedia. Some of your enemies are already realizing this, as the occasional "new discoveries" into nanotech and the mind demonstrate.
I agree that there pretty much cannot be a cheery "galaxy peace" ending, but there it isn't that hard to figure out possible "peaceful" solutions.