Infection (or Infection Bio War as it appears in the App Store) allows you to use a disease to kill off all of humanity, which is always a fun pursuit! There’s a large number of disease pathogens and disease evolutions that can be unlocked in the game. Here’s how to get every one of them.
Many of the evolutions have three unlockable levels, all of which will provide extra bonuses. Unless noted, I’ll list all three of the levels and how to unlock them here.
Airports: Win the game beginning in Central Europe (only one level of this one)
Cysts: Win on easy, win on medium, win on hard
Kickstarter: Win with disease traits totaling 300, 400 or 500 DNA points
LandBorders: Win the game in less than 730 days
Foreigners: Infect Oceania in 280 days or less
LethalityBoost: Win with a cure research progress of less than 20 percent
Migrant: Infect one country in every continent within 260 days
Ports: Win without any animal vector disease traits, win without any waterborne disease traits
Reactive: Win within 200 days after the first death (150 and 100 days for next levels)
Xenophobia: Finish having popped all but 5, 4 or 3 DNA bubbles
Here are all of the pathogens and how to unlock them.
Bacteria: Your starting pathogen.
Virus: Win with Bacteria on normal or hard mode.
Fungus: Win with Virus on normal or hard mode.
Prion: Win with Fungus on normal or hard mode.
Protozoa: Win with Prion on normal or hard mode.
Worm: Win with Protozoa on normal or hard mode.
Lab Agent: Win with Worm on normal or hard mode.
You can also purchase any one of them that you want to, but there’s no reason to do that when they are so easy to unlock for free. Be aware that if you do purchase them, then they will have to be restored if you delete the app and then reinstall it, and if you unlock them via playing, you will have to unlock them again.