# How to exclude CBMs/bionics?
**URL:** https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584
**Category:** The Toolbox
**Tags:** mod
**Created:** [July 3, 2021, 1:42pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584 "2021-07-03T13:42:39Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@nigromancer](https://discourse.cataclysmdda.org/u/nigromancer)
#### Post date: [July 3, 2021, 1:42pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/1 "2021-07-03T13:42:39Z")
Can anyone tell me if there is a simple way to exclude CBMs/bionics from the game, for example when using ‘classic zombies’ mod?
Or remove high-tech altogether from the game?
Sometimes I hanker for the 80s… 🙂
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### Author:  [@Valase](https://discourse.cataclysmdda.org/u/Valase)
#### Post date: [July 3, 2021, 2:00pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/2 "2021-07-03T14:00:46Z")
> [@nigromancer](#):
>
> Can anyone tell me if there is a simple way to exclude CBMs/bionics from the game, […]
Through modding and using blacklists, yes.
The (discontinued) `Dark Skies Above` mod did this, for example. You can check the blacklist files, especially the [item blacklist](https://github.com/CleverRaven/Cataclysm-DDA/blob/967510fb8f24852b09b80bf177b20b02c0109f53/data/mods/Dark-Skies-Above/blacklists/item_blacklist.json), to get some better understanding on how to do it.
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### Author:  [@nigromancer](https://discourse.cataclysmdda.org/u/nigromancer)
#### Post date: [July 3, 2021, 3:22pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/3 "2021-07-03T15:22:54Z")
Thanks. That looks just right.
So I just create my own mod blacklist and include these plus any other items that I want the game to exclude, right?
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### Author:  [@Valase](https://discourse.cataclysmdda.org/u/Valase)
#### Post date: [July 3, 2021, 3:26pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/4 "2021-07-03T15:26:19Z")
> [@nigromancer](#):
>
> So I just create my own mod blacklist and include these plus any other items that I want the game to exclude, right?
Yeah, exactly.
Just remember to add your mod to your world when generating it and you should be good.
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### Author:  [@nigromancer](https://discourse.cataclysmdda.org/u/nigromancer)
#### Post date: [July 3, 2021, 3:33pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/5 "2021-07-03T15:33:08Z")
Thanks. Cool. All set for retro… Time to hit the _chopping_ mall! 😉
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### Author:  [@mlangsdorf](https://discourse.cataclysmdda.org/u/mlangsdorf)
#### Post date: [July 3, 2021, 6:34pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/6 "2021-07-03T18:34:47Z")
Dark Skies Above is back, as a collaborative effort between ephemeral\_storyteller and myself. Expect great things or at least decent things or at least surveillance drones beeping at you until they summon alien skirmishers to murder you.
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### Author:  [@Valase](https://discourse.cataclysmdda.org/u/Valase)
#### Post date: [July 3, 2021, 6:38pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/7 "2021-07-03T18:38:49Z")
> [@mlangsdorf](#):
>
> Dark Skies Above is back, […]
Oh, good to know! I just saw that a few minutes ago as I gave Frank a try and wondered if it was just “deobsoleted” for the stable release or if it is actually maintained again 😃 .
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### Author:  [@nigromancer](https://discourse.cataclysmdda.org/u/nigromancer)
#### Post date: [July 3, 2021, 9:11pm UTC](https://discourse.cataclysmdda.org/t/how-to-exclude-cbms-bionics/26584/8 "2021-07-03T21:11:58Z")
You! You’re the guy!
You wrote the modding guide that got me going! Turning a game into an obsession. It’s all your fault… Thank you. 🙂