I am playing a single player, 5 medium AI's in a random large galaxy (50 grav wells, 3 systems), struggling to maintain an alliance and trying to predict where the dangers will come from.
I wiped out one opponent to gain the alliance with the demanding advent. Their demands are taxing but their usefullness is beyond question and enters the realm of indespensible... for now. That they need me to prove my loyalty, might and the syncronicity of my political aims with theirs is fully understandable. Just like the US does today with it's favoured treatment of Willing allies... no matter how different their culture may be. I now guard one wormhole instead of two to my treasure worlds, helping buff my offensive fleet's resources immensly.
The cold war with the other two major powers of the glaxy drags on, planets are changing slowly. Fleets are at their size limit and firefights deadly. My level 7 Mothership escaped with 24HP after one badly judged sortie.

My races unique abilities are all that keep me in the game, I spend all day at work thinking of new plans. I have one week and 6 hours clocked on it so far and last night discovered the minow of the game, the 5 planet insignificant gnat of a TEC civ... is leading in Research.
THE HORROR
No campaign I have EVER played has been this EPIC, including Homeworld (1,1.5 and 2), Starcraft, Company of Heroes or World in Conflict (to name my favorites). And this is without cinematics or scripted events. It takes some effort, many lost or small games to get the basics down on the diplomacy, economy and battle tactics. But it's worth it.
But I suckled from MOO's teat as a wee teenager, maybe thats why I appreciate it and have trouble whinging about anything other than the lack of waypoints for rally points, slightly dodgey networking implementation (Which is almsot forgiven in that there is MP save) and a few minor other interface problems I have that shoudl ahve been covered in the tutorial if in fact they are problems that don't exist. Minor gripes compared to almost any other game I have ever owned.
Do kids these days even have an imagination? Maybe sins is too oldschool in that sense. Poor kids. Lucky most pc nerds are 30+ and can make their own legend in awesome sandbox games like this.