Tutorials:

Item-Making Tutorial, Part I

A Guide to New Ammo Types

eXpat easy HOWTO (XML parser for C) (German Language)

INI Files:

INI Settings

XML File Details:

Items:

Items

Weapons

Launchables

Merges

Ammo:

Ammo Strings

Ammo Types

Magazines

Armour:

Armour

Explosions:

Explosives

Explosion Data

Attachments:

Attachments

Attachment Info

Attachment Combo-Merges

Incompatible Attachments

Equipment Loadouts:

Enemy Gun Choices

Enemy Item Choices

IMP Item Choices

Sounds:

Sounds

Burst Sounds

Other:

Compatible Face Items

Shopkeeper Inventory

Scripting:

Modding_by_Scripts

Description of data formats

STCI (STI) format description STCI (STI) format description russian