World Generation request: No rival clans option

[Mischief Maker]

Like the post title said, I love generated missions where it's just me and my tiny settlement against the world. I'm not a big fan of the Depths of Peril/Zombasite style of your games. But if a new world has rivals and I quit, I'll get slapped with an XP penalty and my followup world may have rivals again.

I request a checkbox on the world generation screen for "no rival clans" as the solution. Thanks in advance!