Boss health bar

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Desktop versionConsole versionMobile version
Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
"Boss Bar" redirects here. For boss health, see Bosses.
Eye of Cthulhu boss health bar.png
The Eye of Cthulhu's health bar without numeric health display.

When a player is within the range of a boss or mini boss, a red health bar will appear Desktop versionConsole version on the bottom of the player's screen / Mobile version below the minimap that represents the boss's total remaining health. When there are multiple bosses in the player's range, only the most recent boss that had been afflicted with damage or the closest one in proximity to the player will be shown.[1]

The boss health bar also has a togglable option that enables a numeric display for boss health called "Boss Health Bar Numbers" in the settings. The maximum and remaining health of the boss will be shown on the bar when the option is on.

Notes

  • Some bosses' health bars have special displays:
    • The Eater of Worlds' health bar counts the total health of all segments.
    • The Brain of Cthulhu's health bar counts the total health of both the Creepers and the Brain itself.
    • The Skeletron and Skeletron Prime's health bars only show the remaining health of the head.
    • Retinazer and Spazmatism have individual health bars.
    • Golem's health bar shows the total health of the head and the body, but not the fists.
    • The Martian Saucer's health bar shows the total health of its four weapon parts and the core.
    • All four Celestial Pillars have two bars, a blue-colored one for its shield and one for its health. The shield bar will overlay the health bar and shows the remaining kills needed to destroy the shield on the bar if the numeric display is on.
    • The Moon Lord's health bar shows the total health of all of his damageable parts, including all three eyes and his core.
  • Mobile version The boss health bar will display on the bottom of the screen if the player is using a controller or keyboard and mouse.
The boss health bar on the Mobile version Mobile version.
Note how it changes positions when swapping to touch controls.

Trivia

  • The icon on the left of the boss health bar is the map icon for that boss.

History

  • Desktop 1.4.4: Added an option that displays the health of the boss in the middle of the bar.

References

  1. Information taken from the Desktop version Desktop 1.4.4.6 source code, method TryFindingNPCToTrack() in Terraria.GameContent.UI.BigProgressBar.BigProgressBarSystem.cs. There may be inaccuracies, as the current Desktop version Desktop version is 1.4.4.9.