Overall. 4 of 5 stars.
I loved this game. I've had some of my best moments introducing friends to game using this one. I dont know how the game is typically marketed but I say its a puzzle game, and you have to do a specific set of thing to get your tribe (or whatever) from one mission to another. After you beat a level you can go back to completed levels to mess around and I tend to have the most fun messing around.
On the otherhand the interface can be frustraingly difficult to work with (enough so that I've had people give up before getting past the 2nd level) and a lot of people wont have fun playing because of it. The AI of the units you have to control tends to leave them standing at cliffs and rocks that are difficult to cross waiting for the people to make them a path over them instead of walking around them on the simpler path and on some occasions they wont take a control point claiming there is an obstruction when they are standing right by it. The only game mode is the puzzle mode starting you off in increasingly more dire situations which can make play exhausting.