Shroom Vodka

Mushroom Vodka is the main drink of choice in the Metro system. Shroom vodka is distilled in large quantities in settlements, and traded throughout the Moscow Metro by the factions and settlements that make it. It's known to be a major export of VDNKh station.

Overview
It is found almost in every place populated by humans, and is one of the only alcoholic beverages available for people to drink since mushrooms are found in almost every corner of the Metro. Although some pre-war alcoholic beverages can be found, these are (obviously) very rare in the game's present time. Shroom Vodka tastes horrible and "Knocks you on your ass", but is one of the few luxuries people in the Metro have left.

After completing the "Chase" level, Artyom, Boris, and Eugine get some R&R at Rizhskaya station's bar, drinking shroom vodka shots in Artyom's honour for saving their lives. In Market station, Artyom can drink vodka for free. Ulman mentions in one of the underground passages near D6, that "this would be a great place to grow 'shrooms!" .

In novels of the Universe of Metro 2033 series, especially some of the Polish ones, vodka remains an important alcoholic beverage for the denizens of post-apocalyptic Eastern Europe. This is because, even before the war, vodka was the national drink of Poland and Russia. Some characters, such as Lieutenant Kamila's comrade and subordinate Łukasz "Spajor", continue to distil their own spirit out of potatoes and grain (usually rye or wheat), when these can be obtained from patches of less damaged soil.

Trivia

 * In Metro: Last Light, Artyom drinks what is possibly shroom vodka on the levels: "Bolshoi" and "Venice".
 * In the Venice level, Artyom can also be drunk if he drinks too much "Bullet", bartender's customised vodka.