Descent: The Road to Legend

Yes—the app is required: it runs the overlord role, manages monster activations, events, and the campaign/quest flow, replacing the manual overlord tasks from core Descent (see Rulebook pp. 4 and 13).

Attacks require line of sight and must meet any range or melee restrictions; obstacles and certain terrain block or modify line of sight and range as described in the attack and movement sections (see Rulebook pp. 6–7 and 17).

A knocked-out hero is removed from the map and is out of action but can be returned to play by a Revive/Stand Up action or other effects; a hero that is defeated is removed from the quest with the campaign consequences described in the rules (see Rulebook pp. 5 and 8).

Monsters follow the activation list and special effects the app displays, and the app controls decisions, triggers, and any steps that can be skipped or finished during an activation—players follow the app’s instructions for monster behavior (see Rulebook pp. 16 and 15, and the app integration notes on p. 13).

Engagement and spotting follow specific rules: a monster becomes engaged when in contact per the rules, monsters move toward or away using the app-directed movement, and retreating/movement-toward-or-away follow the detailed movement and retreat rules (see Rulebook pp. 5, 17–18).

Monsters are organized into groups with group limits; lieutenants and unique monsters are handled by the app and group rules, and you cannot exceed a group’s limits beyond what the rules and app allow (see Rulebook p. 10, and Act handling on p. 22).