[quote=antarctic termite]
Other than prokaryotes and any castaways we might have created (as of now, just the Forgotten and the colony species I ditched earlier, I think), no, we are the only life. If another player chooses to enter, a new simple species will be created for them.
[/quote]

I see. How often should castaways be created? Only when the entity desires it? Or accidentally and every so often? (or somewhere in between the two?)

An unrelated question: has an ozone layer already formed on this planet? How safe is the surface?