# How do you disable certain overmap terrain tiles?

**URL:** <https://discourse.cataclysmdda.org/t/how-do-you-disable-certain-overmap-terrain-tiles/18793>\
**Category:** The Toolbox\
**Tags:** mod\
**Created:** [February 15, 2019, 12:22am UTC](https://discourse.cataclysmdda.org/t/how-do-you-disable-certain-overmap-terrain-tiles/18793 "2019-02-15T00:22:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Fool](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/fool/32/4306_2.png) [@Fool](https://discourse.cataclysmdda.org/u/Fool)\
**Post date:** [February 15, 2019, 12:22am UTC](https://discourse.cataclysmdda.org/t/how-do-you-disable-certain-overmap-terrain-tiles/18793/1 "2019-02-15T00:22:42Z")

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I’m making a mod that takes place in a world where the Cataclysm never happens (no zombies or monsters) but robots take over Earth (essentially bootleg _Terminator_ in CDDA). I want to **remove all overmap tiles related to said monsters** (hives, ant hills). Is it possible to remove these terrain tiles?

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**Author:** ![Junknown](https://avatars.discourse-cdn.com/v4/letter/j/9fc348/32.png) [@Junknown](https://discourse.cataclysmdda.org/u/Junknown)\
**Post date:** [February 15, 2019, 6:42am UTC](https://discourse.cataclysmdda.org/t/how-do-you-disable-certain-overmap-terrain-tiles/18793/2 "2019-02-15T06:42:54Z")

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Yes, it is. Find the IDs of the overmap specials you wish to remove and make a overmap\_specials.json file with the following format:

```
[
  {
    "type" : "overmap_special",
    "id" : "Anthill",
    "copy-from" : "Anthill",
    "locations" : [],
    "occurrences" : [0, 0]
  },{
    "type" : "overmap_special",
    "id" : "Acid Anthill",
    "copy-from" : "Acid Anthill",
    "locations" : [],
    "occurrences" : [0, 0]
  },{
    "type" : "overmap_special",
    "id" : "Bee Hive",
    "copy-from" : "Bee Hive",
    "locations" : [],
    "occurrences" : [0, 0]
  }
]
```