DNA Farm is a Choices Matter, Action-Adventure, Hand-drawn PC game, developed by Leonid Bazhanov, available on Steam and published by Leonid Bazhanov.
Hardcore adventure inside the human body. You take control of one bacteriophage, which steals(farms) DNA resources from various viruses. Use this DNA to evolve or create clones with which you can change positions at any time. Used wisely, you may cure all 5 organs.