Round and actions
Combat is composed of a series of 15 second rounds, during which each character may take a turn.
When any player cares about the turn order, each player (including the DM) rolls a single d6 for initiative to apply to all characters they control. Then each character they control applies its own Agility as a bonus to the roll.
Break ties randomly when needed, but note that characters can choose to Delay their turns for a better turn order.
During each character’s turn, that character may take a standard action and a move action, as well as engaging in many smaller actions. Instead of a standard action, a character may take another move action. A round (each character taking a turn) is fifteen seconds. There are also immediate actions, which can be used on any turn, and interrupt the current event or action immediately: each immediate action taken requires the character to expend one move action as soon as they are able; a character cannot have more than two pending move actions of this type at a time.
If something has a duration measured in rounds, that means it ends at the beginning of the current initiative count, some number of rounds later.