Xu Liang (旭 梁) is an independent game developer based in China, known for creating minimalist puzzle and simulation games for mobile and desktop platforms. He began releasing games in 2016, most notably Escape from Sin City for macOS. His portfolio includes over twenty titles focused on logic, survival, and life simulation — many of which explore abstract themes with stripped-down visuals and straightforward mechanics. Xu Liang typically publishes under his own name and operates via his official website a99h.com, without affiliation to a larger studio. His games often appeal to players who enjoy introspective gameplay, immersive storytelling, and the challenge of escaping complex situations through critical thinking.