Outposts are a cheap way of establishing control of the map. The Outpost tile can be built by a Settler or Militia unit at no cost. Its maximum size is 2 and its vision radius is 2. Each building of a Outpost tile has 2 hitpoints. When destroyed, an Outpost tile becomes a Rubble tile.
Like City tiles, an Outpost tile will only gain power at night if its surroundings are sufficiently natural; the number of Grass tiles that are not covered by Snow, plus the number of Forest tiles, plus half the number of Water and Crops tiles (rounded down), must be greater than its current power. An Outpost tile that is occupied by an enemy unit does not gain power.
The Outpost tile can produce a Militia unit at the cost of 5.
The Outpost tile can produce a Settler unit at the cost of 1. The produced Settler unit will always have 1 figure, regardless of the current power of the Outpost tile.