FOSS gamedev and creative worlds

so im going to make a map soon but i dont get it yet so is there a good mod or somthing to make it a little flat spot or somthing i have 0.4.5 and i want it to be a BIG MAP so i need a flat place

zoropig wrote:i have 0.4.5

Update to 0.4.6. It has an option (in the config file) to make a completely flat map.