"Nia" is a 2D platform game that focuses on creating a visual atmosphere. This paper begins by exploring the interactivity between game mechanics and the story, analyzing the game mechanisms of the platforms, including platform types, traps, and rewards. It then proceeds to discuss scene color tones and character design to enhance the visual effects of the game. Furthermore, it integrates characteristics from relevant 2D platform game examples, synthesizing these elements into the creative process.

　　The game's narrative aims to portray a journey of self-discovery, utilizing color and scene changes as metaphors for the protagonist's inner state. The transformation from black and white to a vibrant spectrum of colors symbolizes a shift from desolation to prosperity. The game is divided into three levels, with scene color palettes and character designs evolving as the levels progress. The primary objective for players is to collect light points, and upon collecting all the light points, the character Nia undergoes a transformation and proceeds to the next level. The game's difficulty is gradually increased, with each level featuring different types of platforms that offer players diverse gameplay experiences. To create a more immersive visual experience, the game incorporates effects, interactions between character and environment. So that players can experience the environment triggered by themselves, enabling them to enjoy the rendered atmosphere and engage in a deeper level of sensory experience.