A free program for Android, by WhatsFun.
Build Master: Unknownland is a game with an extremely survivalist theme. You are the leader of a small team of survivors who are trying to establish a new home on an unknown land. You must manage the team, the resources, and the land. You will start small as a simple worker. As the game progresses, you will have to build a shelter, a small camp, and other living facilities to help other survivors.
You will need to explore the land and find whatever is useful. The game will progress as you play and as the world changes.