Plague Inc - a game where you evolve microbes to create a global plague

Totally agree. The gene splice that keeps devolve costs from increasing is basically an automatic win on most modes, as long as you have patience. As soon as you mutate a symptom, immediately devolve it, and nobody will notice you until you reach 100% infection. At that point, as long as you have saved up enough DNA points to go super-lethal all at once, you win.

That’s why Bioweapon is so hard for me–because I haven’t yet figured out how to stay under the radar long enough to have finished infecting people.