Let me recommend a few novels that meet your requirements! The first was "Cultivating in the Demonic Martial World's Chaotic Times". This was a cultivation civilization novel. The main character, Fang Xi, transmigrated to the cultivation world and became a big shot. Next was the Legend of Manshen. This novel was about the protagonist Chen Manshen, who had unfortunately transmigrated to the Xianxia world and embarked on an incredible journey of immortality. There was also "I Have 3,000 Avatars", which was a novel about the game world. It told the story of the protagonist, Su Hang, who obtained the avatar system in the cultivation world and began his path of cultivation. I hope you like my recommendations, please feel free to tell me~