While these games are a far cry from Halo or World of Warcraft, they’ve garnered international interest from both scientists and the general public over the past five years. Creators believe this concept has the potential to engage both kids and adults in learning about biological processes.
But a small number of observers think that interfering with living things for entertainment, even on such a microscopic scale, raises ethical issues. At the heart of this argument is a concern for human beings’ level of control over life. If we alter organisms or manipulate them for fun, are we entering into an unhealthy relationship with the world around us?

Fascinating. Perhaps the ethical questions may disappear when astronomers finally discover the Universe's coin slot.