 If you liked
.hack//Sign
|
 ...then you might like
Fullmetal Alchemist: Brotherhood
|
Both anime are adventures which dictate a journey through their characters as they struggle to find truth and a sense of the world. Both anime also contain the element of mystery as they slowly divulge the answers the characters have been searching for. FMA differs with more action and being shounen; carrying the some of the demographics traits. While .hack//Sign differs with its virtual world (MMORPG) setting whilst carrying sci-fi and fantasy elements. If you are someone intrigued by slow divulgence of truth and answers, as characters make their own journey forward, you'll be sure to like both anime.