# TweakXL: Changing game records

## Summary

**Last documented edit**: Feb 09 2024 by [mana vortex](mailto:undefined)

Changing item stats happens by making changes via **TweakXL** or **REDmod** in the [TweakDB: Game database](/cyberpunk-2077-modding/for-mod-creators-theory/tweaks/tweaks.md).

{% hint style="info" %}
You can find more information about this on the [TweakXL github's wiki page](https://github.com/psiberx/cp2077-tweak-xl/wiki/YAML-Tweaks).
{% endhint %}

## Guides about this:

{% content-ref url="/pages/b7sbz1wcnWb3Y5dTHP8K" %}
[Adding stats, modifiers, and mod slots](/cyberpunk-2077-modding/modding-guides/items-equipment/editing-existing-items/adding-stats-and-modifiers.md)
{% endcontent-ref %}

{% content-ref url="/pages/wKj0dUcdh5peQ3l2DGRi" %}
[Changing vendor inventory](/cyberpunk-2077-modding/for-mod-creators-theory/core-mods-explained/tweakxl/tweakxl-changing-game-records/changing-vendor-inventory.md)
{% endcontent-ref %}

{% content-ref url="/pages/13W3tMsFsLq9JadDqpxW" %}
[Changing NPCs - Tweak edit (REDMod)](/cyberpunk-2077-modding/for-mod-creators-theory/core-mods-explained/tweakxl/tweakxl-changing-game-records/changing-npcs-tweak-edit-redmod.md)
{% endcontent-ref %}

{% content-ref url="/pages/9GcEh2c9jE9KP3lsDmlP" %}
[New Iconic Weapon: Step by Step](/cyberpunk-2077-modding/modding-guides/items-equipment/adding-new-items/weapons/new-iconic-weapon-step-by-step.md)
{% endcontent-ref %}

## How to edit tweaks?

You can change tweaks with

* REDMod (see [Changing NPCs - Tweak edit (REDMod)](/cyberpunk-2077-modding/for-mod-creators-theory/core-mods-explained/tweakxl/tweakxl-changing-game-records/changing-npcs-tweak-edit-redmod.md))
* Cyber Engine Tweaks (see Scissor's tutorial ([Google Doc](https://docs.google.com/document/d/1pPN_RiluE-4PwGWOxdEVOegfBEaEsd5APHndr82FdPo/edit)))
* TweakXL (see [Changing vendor inventory](/cyberpunk-2077-modding/for-mod-creators-theory/core-mods-explained/tweakxl/tweakxl-changing-game-records/changing-vendor-inventory.md))

{% hint style="info" %}
If possible, you should stick to TweakXL for editing tweaks.
{% endhint %}

<details>

<summary>Why? What's the pros and cons for each?</summary>

[psiberx says](https://discord.com/channels/717692382849663036/953004282142163014/1177462646937763850):

it's mostly preference but there are real advantages of TweakXL:

* proper record creation and cloning with all properties
* proper hot reload with rolling back to initial state, and not just reapplying your mod changes on top of previous run
* it's much faster when used for declarative tweaks and even for scripts (I did some optimizations for CET which reduced loading times 20x, but it needs more; for reference if we convert just the existing clothing mods to CET it'll increase game launch time in minutes)
* easier to work with arrays
* can create new stats

REDMod can do the same, but doesn't offer you [hot reload](/cyberpunk-2077-modding/for-mod-creators-theory/modding-tools/redhottools/rht-hot-reload.md) features.

</details>

## Removing properties

If you want to **safely delete** a record property, set its value to **None**.


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