Sins of a Solar Empire: Diplomacy is the second and final micro-expansion pack for Sins of a Solar Empire. The first one, Sins of a Solar Empire: Entrenchment, added new technologies and starbases to allow players greater military options in their conquest. By contrast, Sins of a Solar Empire: Diplomacy, allows players the option to take on a more Machiavellian strategy towards victory.

With Sins of a Solar Empire: Diplomacy, players get a new research tree that vastly expands the diplomatic options available to players. Computer controlled players, for instance, can become pawns in a greater game. The enhanced computer AI, however, can make back room deals as well with great subtlety.

Sins of a Solar Empire: Diplomacy is a micro-expansion and requires the full version of Sins of a Solar Empire and Entrenchment to play.

Anticipated Release: February 2010