Sins of a Solar Empire - Trinity takes players through 25 years of warfare beginning with the real-time strategy game that started it all. In Sins of a Solar Empire, the independent Trader Worlds are forced to unite in order to defend themselves from the alien Vasari menace and the return of their exiled brethren, the Advent. The Entrenchment expansion jumps forward 15 years to a time of stalemate between the factions when they fortify the territories they control with powerful starbases, mine fields and advanced defenses. Diplomacy takes the player to the current day, when the constraint toil of war has taken its heavy toll. Some speak of peace, while others see such initiatives as openings to destroy their enemies through subtler means.