Between Doom, Half-Life, Battlefield, and Counter-Strike, the FPS formula has been smoothed and perfected. Mechanically, the genre is straightforward. Aim your gun, shoot enemies, and don't get shot yourself. But it's the finer details that make one shooter different from the next. Doom Eternal, for example, has the ultra-fast movement and the meathook shotgun. Titanfall 2 has free-running and the set-piece mech sections. And in Metro, it's all about the equipment. Weapons fall to pieces. Kinetic flashlights have to be recharged. Your gas mask gets covered with water and mud. These may seem superficial, but in practice, they make Metro 2033, Last Light, and Metro Exodus some of the tensest FPS games of the last 20 years - and now you can get them all for $7.
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