What other worlds do you have?

[radtech497]

I'm currently in the midst of transferring my "sandbox" setting from the "observation shadow" of the Milky Way galaxy into its own dwarf spheroidal galaxy (which comes equipped with an intermediate-mass central black hole). When (or if) the setting is complete, there will be about 1450 systems that have given rise to sophont civilizations (though about a quarter of that number has become extinct and are known only by their artifacts). This is a long-term solo project designed to look at interactions among and between non-human civilizations at various stages of technological and societal development.

Radtech497