The text of the sim says in part: "Everwinter Is Inspired By The Abandoned Amusement Park In The Real World City Of Pripyat. The Pripyat amusement park in Pripyat, Ukraine is an abandoned amusement park. It was to be opened on May 1, 1986 in time for the May Day celebrations (decorations for this event are still in place in Pripyat today) but the plans were interrupted when on April 26 the Chernobyl disaster occurred a few kilometers away. The park was opened for a couple of hours on April 27 to keep the city people entertained before the announcement to evacuate the city was made. (...) The audio message you can hear in russian as you enter Everwinter is the actual recording of the evacuation message played to the city of Pripyat following the nuclear disaster at Chernobyl. The evacuation of Pripyat took place the day after the disaster on the afternoon of April 27, 1986. The evacuation of Pripyat's 43,000 residents took 3.5 hours, using 1,100 buses from Kiev. The inhabitants were allowed to take only necessary items with them, as they were to return in three days. This information was released to avoid panic and to stop people taking too much luggage with them. Later, the authorities decided that the city must remain empty forever."
The sim is rated Mature/Moderate