In Plague Inc. for the Android & iOS (iPhone, iPad, iPod Touch, etc.), you’ll notice that when you start a new game that you can select gene modifiers if you have any unlocked, but it’s fairly vague as to how you unlock them. Sure you can buy them, but who wants to do that?
At first I thought it was just from playing the game, but my first few plays I kept losing and not unlocking anything, so that couldn’t be it. I figured at this point that you must need to win a game to unlock them.
So I tried my best to win my first game. It took me several more tries, and a switch in strategies, but I eventually got my first plague to wipe out humanity, and sure enough.. I unlocked my first gene modifier.
I also noticed that there is no specific order in which they unlock either. You’ll always unlock them in order in the group they are in, but the group that unlocks a gene seems to be random.
These gene modifiers can help you immensely to win more games as well. They can give you a starting bonus DNA points, or more DNA points back when you devolve, which can really turn the tides on winning some plague types.
One thing to note as well, once you figure out how to win the Bacteria stage, you can keep playing it to beat it and unlock more genes.
Check out my article on how to beat Bacteria on Normal if you’re having trouble unlocking your first gene modifier.