General rules are described in each section; however, specific rules (for race, skill, item or other) will override the general rule. If there is ever a question: specific beats general.

Always round-down. This isn’t just at the half-way mark, but it is a “floor” method; thus, even 1.9 results to a value of 1.

Games dice used are typically d20s; however, there are occasional need for d4s, d6s and d10s.

Circumstances will exist during game play when a character or monster will gain an advantage or will be at a disadvantage. When rolling a skills challenge of d20s, a character with advantage gains an extra d20 to the pool of dice used. A creature at disadvantage loses a d20 from the pool. If the number of dice becomes zero, then that skill cannot be used at that moment. The specific rule which overrides zero-die disadvantage is melee combat, which will be detailed later.

Monsters, by definition of the game, are any creature with which an interaction can potentially occur whether socially or in combat. Thus, even a harmless mouse or benevolent unicorn is called a monster as game terminology. This would also include other civilized people living who might be friends or rivals. Most monsters are designed to be threats, but it is important to understand what it means when this text refers to something as a monster. Finally, all monsters have ability scores, have skills and use the same rules as the players.