The Video Game
- Bowdlerise: The German version renamed the Nazis to "fascists", due to Germany's heavy laws about media dealing with the Third Reich. Russians do often refer to Nazis as just fascists, though.
- Defictionalization: The logo of the Rangers/Spartan Order was adopted by a real military formation, the Sparta Battalion of the Donetsk People's Republic.
- Dueling Games:
- Compare with Fallout 3, in which a youth has lived underground his entire life, and must embark on The Quest to the surface and beyond.
- It's basically S.T.A.L.K.E.R., except more linear. Bonus points for 4A Games actually being founded by a couple of people who were involved with S.T.A.L.K.E.R's development, specifically the underground lab levels. Both are also based on sci-fi novels by Russian authors. In the Russian version, the "Ranger" difficulty levels are actually called "Stalker" levels, probably to indicate how much fun you'll have playing them.
- Plot-wise it's also reminiscent of Hellgate: London, which had pretty much the same premise, only with demons instead of mutants.
- The Other Darrin: Artyom's voice actor was replaced in Metro: Last Light. Said actor also re-dubbed all of Artyom's chapter intro dialogue in the Redux version of 2033.