# Additive Data Mod

**URL:** <https://forums.ageofempires.com/t/additive-data-mod/260095>\
**Category:** AoM - Modding\
**Created:** [August 29, 2024, 5:24pm UTC](https://forums.ageofempires.com/t/additive-data-mod/260095 "2024-08-29T17:24:34Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![pwaopwao](https://forums.ageofempires.com/letter_avatar_proxy/v4/letter/p/e8c25b/32.png) [@pwaopwao](https://forums.ageofempires.com/u/pwaopwao)\
**Post date:** [August 30, 2024, 6:26pm UTC](https://forums.ageofempires.com/t/additive-data-mod/260095/8 "2024-08-30T18:26:45Z")

</div>

Thanks to the mod “wrp world role play mod (by agentadkiller adrien)” I learned how to write Additive Data Mods in AOMR. The Base file name must be suffixed with “\_mods”, for example, if the Base file name is “proto.xml”, then the Mod file name is “proto\_mods.xml” and the Root node name is `<protomods>`. If the Base file name is “techtree.xml”, then the Mod file name is “techtree\_mods.xml” and the Root node name is `<techtreemods>`. I haven’t tried with other files, but I imagine it’s something similar.

I would like to ask the devs for a new article dedicated to Additive Data Mods in AOMR, like the one we already have for AOE3DE [Additive Data Mods – Age of Empires Support](https://support.ageofempires.com/hc/en-us/articles/360062106732-Additive-Data-Mods)

PS: For some reason “stringmods.txt” must be written without “\_”. Maybe there are other cases like this.

---

_[View the full topic](https://forums.ageofempires.com/t/additive-data-mod/260095)._