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40 Days [四十天]

40 Days is a special strategy simulation game related to infectious diseases spread all over the city. You, as ahead of the quarantine department, have been given full authority and manpower to contain the city, deal with different parties, virus in the city and most importantly find out the cure.

Steam Page
Developer
Black Phoenix Studio
Publisher
Black Phoenix Studio
Release
November 28, 2017
8 years and 249 days ago
Steam Reviews
Mixed12 reviews50.0%

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Updated: Jul 11, 2026Developer scaleThe operating scale of the game's developer.
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Search Google: How is 40 Days [四十天] and Black Phoenix Studio funded?FundingThe known source of funding behind the game.
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Updated: Jul 11, 2026Release statusWhether and how the game has been released.

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About the Game

40 Days is a special strategy simulation game related to infectious diseases spread all over the city. You, as ahead of quarantine department, have been given full authority and manpower to contain the city, deal with different parties, virus in the city and most importantly find out the cure.

Main Objective
  • Find the Cure within 40 days

  • Choose wisely


Key Features
  • Take action like Air Drop, Reinforcement. Examine Citizen, Send Infect to Lab and so on
  • Virus research and face the virus mutant
  • Maintain the medicine price
  • Deal with medicine business man
  • Depress the cult
  • Manage your city
  • Manage your lab
  • Make decision during Critical Moment
  • Make decision during random events
  • Face the Vigilante
  • Defend attack wave from Angry Mob
  • Protect your facilities
  • Upgrade your base
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