"Escape Tunnel"@en . . "The Escape Tunnel can be applied once the Fort has been built, and is not a prerequisite for any subsequent structure. It costs 2000 gold, 5 ore and 5 wood."@en . "The Escape Tunnel can be applied once the Fort has been built, and is not a prerequisite for any subsequent structure. It costs 2000 gold, 5 ore and 5 wood."@en . . .