# How do I remove things from region gen like forests and roads?

**URL:** <https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066>\
**Category:** The Toolbox\
**Created:** [September 19, 2021, 3:41am UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066 "2021-09-19T03:41:39Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![Bio](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/bio/32/6690_2.png) [@Bio](https://discourse.cataclysmdda.org/u/Bio)\
**Post date:** [September 19, 2021, 3:41am UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066/1 "2021-09-19T03:41:39Z")

</div>

i’m trying to build a truly desolate region mod but even digging through examples in the dessert region mod I find it is still full of forests and roads and such (although I’m curious how they got ravines working).  
I tried simply removing stuff I didn’t want like forest region gen and swamps (basically any surface water) so they don’t appear in mapgen, but the game seems to refuse to load and give me

> : Error: Json error: data/mods/beginnermod/remapped.json:53:7: “forest\_mapgen\_settings”: { … } required for default
> 
> FUNCTION : bool main\_menu::new\_character\_tab()  
> FILE : src/main\_menu.cpp  
> LINE : 944  
> VERSION : aa69568

Is there any way I can blacklist certain region things from generating? I’m pretty new to modding so I don’t know much of how to “remove” things as much as “add” them  
Edit: I experimented a bit and one minor work around was changing where the “field” was located on the z levels and moved it one space up, and surprisingly it worked. This also fixed my problem of trying to make buildings submerged,since now only the roofs show up. Now all I need to do is find a city to see if this worked. This is what I’d call a pretty happy accident

---

<div class="post-metadata">

**Author:** ![Mantar](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/mantar/32/42_2.png) [@Mantar](https://discourse.cataclysmdda.org/u/Mantar)\
**Post date:** [September 19, 2021, 5:23pm UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066/2 "2021-09-19T17:23:12Z")

</div>

> [@Bio](#):
>
> dessert region mod

Paging the My Sweet Cataclysm developer…

---

<div class="post-metadata">

**Author:** ![Bio](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/bio/32/6690_2.png) [@Bio](https://discourse.cataclysmdda.org/u/Bio)\
**Post date:** [September 19, 2021, 7:16pm UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066/3 "2021-09-19T19:16:26Z")

</div>

I don’t understand what this has to do with my question? I checked out the mod but the sweets mod doesn’t even affect regional generation, just terrain. Do they know something about how to get rid of mapgen of regions?

---

<div class="post-metadata">

**Author:** ![Erk](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/erk/32/3871_2.png) [@Erk](https://discourse.cataclysmdda.org/u/Erk)\
**Post date:** [September 19, 2021, 7:26pm UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066/4 "2021-09-19T19:26:01Z")

</div>

It’s a joke because you said “dessert” instead of “desert”.

Your best bet would be changing the forest biome to look like a desolate field by adjusting plant frequency. The current regions are hard coded.

---

<div class="post-metadata">

**Author:** ![Bio](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/bio/32/6690_2.png) [@Bio](https://discourse.cataclysmdda.org/u/Bio)\
**Post date:** [September 19, 2021, 7:41pm UTC](https://discourse.cataclysmdda.org/t/how-do-i-remove-things-from-region-gen-like-forests-and-roads/27066/5 "2021-09-19T19:41:10Z")

</div>

hm I see. What would I have to put in to make it so forests would basically never appear?  
there are alot of things under forests so its a bit overwhelming