Backstab is a configurable mod that adds the ability for weapons to backstab players/entities alongside a few basic daggers

Features:

Daggers: Can backstab players out of the box, weaker than normal swords and cannot using sweeping edge but cost less to make
A config that lets you make any item be able to backstab, and mess with other stuff

Also, check out Laike_Endaril's Dynamic Stealth mod! (Note: The developer stopped working on it, 1.12 only)

Please keep suggestions in issues tracker

Credits:
Mod created by Inforno

Textures derived from Vanilla Minecraft

You can use this mod in modpacks as long as you give credit. Do not claim it as your own or reupload it without permission.

Showcases:

bstylia14:

Mischief of Mice:

WanderingSoulofTime:

FAQ:

Q. Does this work with other mods?
A. Yes, use the config file to add item id's from any mod
Q. Does this work on players?
A. Yup, if the config is enabled

Q. Fabric/Quilt port?
A. No plans, feel free to contact me if you want to try

Mod Development Information:

After taking a bit of a break I decided to update Backstab to 1.19.2 (I will be working on 1.19.3 once I've seen it gain more traction
For now the basic 1.19.2 includes as per changelog:
-Whitelisted items can now override the default multiplier/bonus in the config

-Support for Minecraft's and Forge's tag system, simply add items/tags to backstab:backstab as an alternative to the whitelist config system

-Custom death message: "assassinated"
-Daggers now counts as swords to forge (for modcompat)

-Random bug fixes

Some features I plan to add:
-Enchants to allow backstabbing or silent kill messages
-Possible debuffs?

-% armor penetration
-Actually open source the code so that people can help identify bugs and issues

-Mini wiki page? Should be self explained in /backstab config and the config file itself but eh