Nine Nights is an action game designed for Android that integrates retro graphics reminiscent of PS2 games. Players control a character named Ci Lang, a solitary killer on the run from the Jizo Organization. The game combines fast-paced combat with adventure puzzle elements and platform jumping, challenging players to master button combinations for effective attacks. As players progress, they will encounter a variety of enemies, each requiring strategic combat approaches to defeat.

The gameplay encourages players to develop unique combat strategies, utilizing leg strikes, jumping attacks, and pick attacks tailored to specific enemy types. Players can enhance their skills and upgrade combat moves using rewards collected throughout the game. With a focus on creativity in combat, Nine Nights offers a rich experience where players must navigate obstacles, acquire new abilities, and ultimately seek revenge while uncovering the truth behind their circumstances.