Mage the Ascension is a very deep game, serious, a lot of people, even roleplayers will find it too serious. It ties in with the rest of the World of Darkness, the gaming world White Wolf, the publisher of the original not converted game. Another thing to be sure of is that this is not a playable game as such you will need GURPS Basic first, and probably a lot of experience, as GURPS not only can get very complicated, but the campaign world itself is very difficult to play in as it is very intricatelly worked to work. Yet do not be put of by my comments all in all it still is very good buy, if you are considering this book also consider Werewolf The Apocalypse, Vampire The Masquerade and the Vampire Companion, all three also extremely well thought out and implemented expansion sets for GURPS and as original games.