After clearing each area in the game, other Hunters will be randomly placed on each planet before you land. If you do not want to meet any of the Hunters in a certain area or want the area to be completely empty of Hunters, do the following. First, land your ship on any planet or outpost. Exit your ship then go back in. You can play the level or go through a portal first. Launch your ship and go back to the selection screen. The Hunters should have moved around on the planets/outposts. Repeat this process until you get an empty planet, or until you eliminate the Hunters that you do not want to encounter.