The Exodus Gate requires Nanotechnology and Purity level 13. "Used to bring Earthling Settlers through a warp gate from Earth. Leads to the Promised land Victory." To build this Wonder, select Exodus Gate from the city Wonders build list. One will then be presented with the locations where the wonder may be built. Select a suitable hex and answer the confirmation prompt. To use this building, simply select it and use the Summon Earthling Settler ability. Twenty Earthling Settlers must be settled for a victory.