Age of Wulin is based on plenty of different Wuxia novels, mainly those by Louis Cha (Jin Yong). This list includes some of the Novels the game is based upon.
the Condor Trilogy, consisting of.
The Legend of the Condor Heroes (射鵰英雄傳), published in 1957.
The Return of the Condor Heroes (神鵰俠侶), published in 1959.
The Heaven Sword and Dragon Saber (倚天屠龍記), published in 1961.
The prequel to the Condor trilogy, Demi-Gods and Semi-Devils (天龍八部), published in 1963.
Mandarin Duck Blades (yuanyang dao), aka Blade-Dance of the Two Lovers (鴛鴦刀), published in 1961.
Sword Stained with Royal Blood (碧血劍), published in 1956.
The Smiling, Proud Wanderer (笑傲江湖), published in 1967. I strongly recommend reading this one.