Civilization 5's "Gods and Kings" expansion is set to enter the timeline on June 19 and 22 in North America and internationally, respectively.

At GDC, developers gave us a better idea of the changes in the expansion pack, which will add 27 new units, 13 new buildings and nine new Wonders and civilizations. The big changes will include the addition of religion and espionage, along with tweaks to diplomacy. We're still looking forward to hearing more about the game's additional scenarios, including the "Victorian science-fiction scenario."