# Installing Mods Into Running Worlds

**URL:** <https://discourse.cataclysmdda.org/t/installing-mods-into-running-worlds/12003>\
**Category:** The Lab\
**Created:** [June 7, 2016, 11:24am UTC](https://discourse.cataclysmdda.org/t/installing-mods-into-running-worlds/12003 "2016-06-07T11:24:19Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![COS\_Cecillian](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/cos_cecillian/32/485_2.png) [@COS\_Cecillian](https://discourse.cataclysmdda.org/u/COS_Cecillian)\
**Post date:** [June 7, 2016, 11:24am UTC](https://discourse.cataclysmdda.org/t/installing-mods-into-running-worlds/12003/1 "2016-06-07T11:24:19Z")

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How do you install a mod in world that is already in progress? I seem to have done it before, but I can’t remember how. I was able to get the Cataclysm ++ (the one I’m using) mod into the game for use in world gen, but not in my actual world.

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**Author:** ![Marte](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.cataclysmdda.org/marte/32/1224_2.png) [@Marte](https://discourse.cataclysmdda.org/u/Marte)\
**Post date:** [June 7, 2016, 2:20pm UTC](https://discourse.cataclysmdda.org/t/installing-mods-into-running-worlds/12003/2 "2016-06-07T14:20:32Z")

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Into the world save dir, you have to manual edit MODS.JSON adding the “ident” of the mod in the list.