Origin of the Story: The "Metro 2033" game series is based on the book of the same name by Dmitry Glukhovsky, published in 2005. This book inspired the developers and served as the foundation for creating the game.

Realism of the World: The world of "Metro 2033" is so detailed and realistic that the game's author, Dmitry Glukhovsky, admitted that he wouldn't even survive in such a world due to its dangers and hardships.

Alternative Reality: The games in the "Metro 2033" series take place in an alternate reality where the world was destroyed by a nuclear war. Survivors found refuge in the Moscow subway system.

Metro as a Living Character: In the games, the metro is not just a backdrop but a character of its own. It breathes, evolves, and changes along with the game's story.

Variety of Enemies: The "Metro 2033" series is known for its variety of enemies, including mutants, radioactive creatures, and even other surviving humans. This creates diversity in gameplay and requires different combat strategies.

Exploration Atmosphere: In the games of the series, the emphasis is not only on shooting and combat but also on exploring the world. Players can find various items, documents, and clues that reveal additional story elements and enhance the atmosphere.

Moral Choices: In the "Metro 2033" series, players often face moral choices that impact the game's progression and storyline. These choices add depth and complexity to the gaming experience.

Graphics and Atmosphere: The "Metro 2033" games are renowned for their stunning graphics and atmosphere, which create an incredibly immersive and chilling world.

Developed in Russia: The "Metro 2033" game series was developed by the Russian company 4A Games. This was a significant milestone for the Russian gaming industry, and the games received global recognition.

Multiple Endings: Each game in the "Metro 2033" series has several different endings based on the player's decisions and actions. This encourages replayability and exploring different scenarios.

These facts give the "Metro 2033" series its uniqueness and make it one of the most captivating and atmospheric video game franchises in the world.