In Tales from Candlekeep, there are four phases. The Hero Phase, the Exploration Phase and the Villain Phase are taken from the Adventure System board games. Then we've added an Encounter Phase to the digital version.
In the Hero Phase, players can make their moves and actions in any desired order. For example, during each Hero phase you may move and then take an action next, or take an action first and move next, or simply move twice without taking any action. Each hero has different movement speed influencing the number of squares they can move.
The Exploration Phase will spawn new dungeon tiles in the right circumstances. For instance, if you are on an unexplored edge of a tile during the Exploration Phase, the next adjacent tile will be revealed.
The Encounter Phase represents random events occurring during quests, such as negative effects or attack damage. Note that some encounters can also be positive or neutral. An Encounter will also occur if you did not discover a new tile during the Exploration Phase.
Finally, the Villain phase is when monsters and villains activate and take their turn. Note that monsters only activate on the player’s turn that drew them. But be wary, if there is more than one monster in play with the same name, those monsters will activate each time someone who controls them takes a turn.