Rules for weapon creation can be found starting on page 139 of the Keyforge: Secrets of the Crucible rulebook, and on page 142 for armor creation.
Manual Creation: Choose a base item, then select as many traits as you would like to add to your weapon or armor. While the generator does not limit the number of traits that can be applied, other limitations (such as minimum encumbrance) will be imposed.
Random Creation: Click the "Randomize" button below to get an entirely random creation! Choosing a gear type or base item before randomization will lock it in.
To learn how to add your own options, see the guide.
Random gear names are provided by Fantasy Name Generators.