RTF is a global modification that replaces all towns in the game.

Could you make them like the Leviathans from Mass Effect?
https://masseffect.fandom.com/ru/wik...%D0%BD%D 1%8B

To be honest, I haven't played Mass Effect, so I can't objectively assess these guys.

If their essence is that they were incredibly strong, but they were defeated and are now hiding... then I don't think they deserve to be worshipped.