The abyss was a scene in fictional worlds such as novels and games. It usually appeared in adventure or battle stories. In the Abyss, various monsters and dangers usually appeared. Players needed to fight and explore to successfully clear the dungeon. The story and game settings of the kill order might be different. Some stories may require players to kill certain monsters before they can proceed, while some games may allow players to freely choose the order of killing. However, in the Abyss, the order of killing was no less important than other factors such as weapons, skills, and equipment. The difficulty of the Abyss was usually due to the complexity of the scene itself and the strength of the monsters. Some stories might set up many hidden paths and traps in the abyss that players needed to carefully observe and explore to find the way out. Some games might set the monsters in the abyss to have strong attack and defense, and players needed to have excellent combat skills and strategies to successfully clear the game. In order to succeed in the Abyss, players needed to have a wealth of adventure experience and combat skills. At the same time, they needed to carefully observe and explore the scene, make full use of various resources and tools, and formulate a reasonable combat strategy.