The various modifications that can be applied to a base item, both by players with the appropriate Tinkering skill and by the game when it generates the item.
A stat increased by having a high number of high-level mental mutations. Represents how noticeable the player's mind is to psychic creatures (including those from other dimensions), with higher glimmer attracting more dangerous psychic assassins.
The stat representing how seasoned and experienced a creature is. Experience is awarded for a variety of things, including killing creatures, completing quests, and giving books to Sheba Hagadias, Librarian of the Stilt. After gaining enough experience, a creature or player can level up.
A mechanic determining whether two entities can interact. Creatures/players/items/walls with the same phase can interact, those with different phases cannot.
A ritual in which two creatures share water and exchange secrets or ask for help. Performing the water ritual is the main way a player affects and uses their reputation in Caves of Qud.