chain

Detects prohibited advertisements on the selected IRC network.

Displays notices (e.g. channel URL) on join and private msg (goodbye message) on part. Also provides an !info command in the channel. Script is in French.

Usage should pretty simple. First of all, you choose whether to enable the whole script or not :P.
But let assume that you will enable it.
You may enter unlimited number of channels for autovoiceing. 
Then you can choose to do autovoice only in channels that are listed, or to autovoice in all channels (in which you are OP, of course). 
Furthermore, there is option to set unlimited (again unlimited) number of nicks that WILL NOT receive voice, even if AAV is enabled. 
And last, but definitely not the least, unlike few other scripts I encountered, AAV checks if you are OP on a channel, so you won't receive any of those :

Affine texture map a given triangle. Examples included. Please read the readme.

AfterMath Script
Another old classic script

A well thought-out, basic script for people who just want to chat on IRC.

The revamped version of Airplane 3 that has new graphics, is completely rewritten, and is designed to be faster and more optimized.

A compelling shoot ‘em up with WWII aeroplanes.

A complete Picwin script.

Makes all bots remove all old althubs and adds wanted new althub in all bots.

Andaris is a Script/Addon for the IRC client "KVIrc".
This allows you to optimize and customize your favorite IRC client.

Simple beginner's script

Old archive script for IRC

Tutti gli addon in lingua italiana

Looks for all kinds of spam such as Private, DCC and Channel. Cycles the channel after a time specified in script. Has a feature to send text to channel to detect those spam scripts which work on channel main text. Can now send a warning to users who are spamming.

Protection against user spamming lines of the same letter/digit. Highly configurable. Can ignore digits. You can set users to be ignored. Only checks channels you specify. Warns user if spam detected and kicks them after x warnings.

Anti-Spam addon is mIRC protection addon that will protect you through the spamming by people who sends the message to you that for inviting, unwanted advertisement or anything else that considered as spam.

Bans users who send invite spam to the channel and briefly closes the channel by setting +mi to prevent further joins. Script is in Spanish/English.See extended description.

A basic anti-spam script with keywords preset in Italian.

Sends a message to users upon entering the channel asking the question: how many characters is your nickname? If the response is good, the user is added to the whitelist and if not, to the blacklist. Script is in Spanish.

An addon for keeping your idle time down.

An antispam system. It is possible to change the settings of this script via the partyline.

Allows the bot to "play" the scramble word game by making it respond in the channel with the unscrambled words.

A virtual card table for you to play any card game.

An AppArmor profile to confine HexChat IRC. This profile is developed by the Whonix team. HexChat IRC is developed by xchat.org / hexchat.github.io.
For better security.
How to install apparmor-profile-hexchat using apt-get
1. Download the APT Signing Key.
wget https://www.kicksecure.com/derivative.asc Users can check the Signing Key for better security.
2. Add the APT Signing Key..
sudo cp ~/derivative.asc /usr/share/keyrings/derivative.asc 3. Add the derivative repository.
echo "deb [signed-by=/usr/share/keyrings/derivative.asc] https://deb.kicksecure.com bullseye main contrib non-free" | sudo tee /etc/apt/sources.list.d/derivative.list 4. Update your package lists.
sudo apt-get update 5. Install apparmor-profile-hexchat.
sudo apt-get install apparmor-profile-hexchat How to Build deb Package from Source Code
Can be build using standard Debian package build tools such as:
dpkg-buildpackage -b See instructions.
NOTE: Replace generic-package with the actual name of this package apparmor-profile-hexchat.
A) easy, OR B) including verifying software signatures