CALL TO POWER is turn based computer game but be warned - It`s totally addictive . You can choose many nations and many terrains . You start off with a couple of settlers ( That`s if you decide on an easy level . For the harder levels you only get one settler ) and build a city then the more you progress your cities the more resources you can get and you have more choices as to what sort of government you can place your civilization under. You can also decide how you want to win the game via defeating your enemies in conflict or getting hold of some alien DNA , but defeating your enemies is much simpler and much more fun . Everything about the game is a joy , the contrast in terrains is good , the colours are good , there`s some excellent atmospheric ethnic background music and unlike some other turn based games that I won`t mention the game play is relatively fast . The only downside I can think of is that CTP is pretty difficult , it took me months playing it non stop to finally win a game . Oh and it`s so involving you might be in danger of losing touch with reality