WOIN [NEW] What is a "ruined" planet?

[kingpin000]

Hi there,
I was playing around with the planet generation from page 247 and the first planet type is "ruined". All the other types I understand but this seems strange to me. Does it mean, that the planet was a different type before but then an event (like a supernova) destroyed its surface?

 

[Morrus]

Yep! Or a war or something. You go there and there’s all these ruins and stuff.

 

[CleverNickName]

I immediately thought of the World of Ruin, from the second half of Final Fantasy VI.

Because of course I did.