Agent Roswell tells about the adventures of a government agent. The background begins in 1947 in the USA. That's when the Roswell incident happened. After that incident, the authorities created the Alien Investigation and Elimination Bureau. You will play as one of the employees of this organization. The main plot starts in 1967. The story focuses on the main character's attempts to stop the alien invasion of Earth. The game itself is a shooter. In it you can switch between first and third person views. The indie project is designed for single playthrough only. In the game you have to fight with alien life forms, robots, UFOs and human terrorists from the SETA group.

The campaign in Agent Roswell consists of 20 missions. The locations of operations are not limited to America. Some missions take place on the Moon. Between tasks, the protagonist finds himself at headquarters. There he is allowed to configure equipment, get acquainted with archival data and plan further actions. As you progress, you gain access to new skins, upgrades, and gadgets. You can move around the locations not only on foot, but also by transport. There are a total of 25 cars in the game. There is also an available map editor. It allows you to assemble your levels from ready-made elements, of which there are 100 varieties. You can set the time of day, select the type of terrain, place objects, and so on.