The inhospitable icy wastes of Frostpunk don’t look so bad if you’ve picked Serenity, one of two routes to take through new free Endless Mode DLC. According to 11 Bit’s video dev diary (which you can find below along with a launch trailer), Endless Mode took longer to develop because they got a little carried away on the new content front. There are four different maps to pick from, determining how free you are to expand your icepocalyptic city outwards, and players can pick between two styles of play as they build without the threat of a looming, story-ending disaster.
Source : rockpapershotgun.com