The Trembling World is a death game novel by Ao Bi Ye. Several hundred thousand players are trapped in a gritty zombie apocalypse survival game just after game launch. There are hints that deaths in the game might be serving some other terrible purpose in the background of reality…
The main character, Liu Gan, is a 4 limb amputee in real life. A quirk in the server code recognized his prosthetic limbs as 'real limbs' in game, giving him 'normal' arms and legs that nonetheless have the strength and power of steel limbs, and thus far more power than a normal player. With this minor cheat helping him survive the early stages of the game, Liu Gan sets out to find out what exactly is going on, and to endure as long as he can.
TTW is differentiated from most 'death game' stories by the grimness of the surroundings, and the frequent and messy deaths of the cast of characters. While zombies might be the primary enemies, they are naturally upgraded and found in ever more bizarre forms to bedevil the characters. Action is both realistic and with a touch of supernatural, with game abilities few and far between, yet nonetheless powerful when unleashed. PK's and intelligent factions in the game also constantly test the protaganist.