DUSK – a first-person shooter with corridor levels in the passage. The adventure is divided into 3 episodes: “Foothills”, “Structure” and “Nameless City”. The process features 32 levels and a schematic plot. The US government stumbles upon a vast underground network stretching beneath Pennsylvania. It was decided to build a military base in ancient ruins and direct many forces to explore the mysterious place.

The main character is a treasure hunter who has never found anything valuable in his life. He tries his luck and successfully penetrates the secret exclusion zone. As it turns out, the ruins are infested with monsters and monstrosities. Surrounded by alien flora, each creature is trying to kill the intruder. The central character will need to reach the main key in each level in order to progress further. Colored keys open the corresponding doors, and behind them there may be useful items or things for further passage.

The protagonist will encounter hordes of enemies attacking from all sides. An extensive arsenal of weapons will help you survive in difficult moments. Many enemies will shoot from afar. At the start of the passage, the user receives a pair of sickles, but gradually gets to pistols, shotguns, machine guns, explosive objects and other weapons. The Rivet Gun fires explosive projectiles and has a short reload time. The gameplay was inspired by 1990s shooters, but has many modern elements. The ward is able to crouch, jump or act.