This is a co-op 'threat management' game with a Judeo-Christian theme: your team of prophets, during the reigns of the ancient kings of Israel (the Northern kingdom), are trying to contain the spread of sin and build altars. Like other games in this niche (Pandemic, Flashpoint, Forbidden Desert), it can be difficult to win but is still fun to play.
The game normally plays with 4 players, but a 5th and 6th player can be added. These additional players would be a false prophet and a thief - the villains who try to thwart the efforts of the prophets.