The Defense of Crete Booster Pack Add-on for Age of Empires Online (GFWL) has 5 achievements worth 150 gamerscore.
Build the Hubris of Icarus in your Capital City.
Build the Shrine of the Bound Minotaur in your Capital City.
Build the Temple of Minos in your Capital City.
Build all three Crete Wonders in your Capital City.
Complete "The Elite Meet in Crete".