The title is Samsara Online, but the whole novel (1-278) is 30% in-game and 70% Gods, assassins, H-scene, etc. It's a good read, but something is missing when he explores the virtual world. I dunno what it is, but whenever I read VR-Gaming novels, I just wanna scream, omg, I want to play that, and I really don't feel it in this novel.