one biome map

[4_Haydawn]

i want wasteland only maps

[Crater Creator]

Moving to the Modding sub-forum, since modding would be the go-to way to achieve that result.

[Pain Weasel]

The easiest solution is to generate the map normally, then edit the map's biomes.png image (%appdata%\Roaming\7DaysToDie\GeneratedWorlds\) so that it is one solid color. You'd have to select the color that corresponds to the wasteland then fill in the entire map with it.

That would preserve all the trader and POI locations but since the game uses that image to determine biomes the whole map would be the wasteland.

You can mod rwgmixer.xml to only have 1 biome, but that causes problems with traders. More than one trader of a different type in a biome can result in them clustering together since the distance between them is only for the same type. You can make it work through mods but it is much more difficult or at least time consuming than just editing the biomes.png file.