thank you again but I already was using this tool to check the seeds for the size of the plains described. your suggestions were great but I'm still searching for larger. I'm after a quite unrealistic seed. I'm looking for a seed that has a single plains location that makes up more than 5% of the total map size. I know I'll probably never find anything like that until some sore of map maker is available (possibly never) But I still wanted to reach out and ask since any random seed could lead to anything (besides a few perimeters) as far as I know.