Alias combines stealth and action. There are also bitmap elements. The game mixes a spy setting with mysticism and science fiction. The heroine can change clothes and use gadgets such as a decoder, a master key, a listening device, or an electromagnetic pistol. With their help, you can hack computers, disable cameras, and so on. You are not allowed to select equipment between levels. Instead, the protagonist receives a new device before each mission. You can switch between items in a special menu. When using some things, the camera changes its perspective to a first-person view. The screen periodically splits into 2 parts. This allows you to simultaneously perform a task (for example, picking a lock) and monitor the movement of enemies. You can fight with opponents, and you are also allowed to eliminate them quietly.

Localizers translated the title of the title into Russian as Spy. The project is based on the series of the same name. The plot tells about the adventures of Sydney Bristow. This young woman combines her studies at the philological department with work for the CIA. And she, being a double agent, works for the secret organization SD-6. The scriptwriters of the TV show were responsible for the narration. The story is intended for those who watched the original. The video game is like another episode of a television series. For beginners, the developers have inserted a video with a brief description of previous events. The heroine will visit Russia, Monaco, Romania and the Middle East. Here you can save game progress at checkpoints.