World Boss ESP and Dungeon Boss Markers tell you where listed bosses are within Max World Distance. They do not spawn the boss, skip mechanics or loot the chest.

Open world versus instance

Field bosses use fixed spawn points and timers in community maps. Dungeon bosses sit inside sealed dungeons, expeditions and later difficulties. Game context: world boss guide and dungeon guide.

Radar pairing

Boss markers on radar duplicate the idea in 2D. Use one layer if the screen is already busy.