Lives

Lives or a Life (singular), is the main factor used by the game to determine how well the player has beaten the level. Located in the top corner of the screen next to the Gold counter, the player starts a standard Campaign level with 20 lives, an Iron Challenge or Heroic Challenge with only one life, and an Endless Challenge with 10 lives.
==Overview==
Lives are lost when enemies cross the exit. Non-boss enemies can cost between one and six lives, depending on how strong they are (usually, but not always). Bosses and mini-bosses from the Endless Challenge cost 20 lives (in the first three games) or 999 lives (in the subsequent games); letting a boss leak will instantly end the level in defeat.
Completing a Campaign level awards stars based on the number of lives left:
* 18+ lives: 3 stars
* 6-17 lives: 2 stars
* 1-5 lives: 1 star
==Increasing lives==
The Shop in the mobile versions of Kingdom Rush and Kingdom Rush: Frontiers sells a Heart Box that increases the player's lives by five. In Kingdom Rush: Vengeance, it sells a Heart in a Bottle that gives three lives.
===Tips===
* Heart Box is very useful in the Endless Stages, and tend to be most worthwile in very late waves of the game. Minibosses tend to have very high health, especially starting from wave 70 onwards; four Heart Boxes are sufficient to mitigate the lives lost when a miniboss leaks.
* A Heart Box used in either the Heroic or Iron challenges will multiply your lives by six, giving you a better chance of surviving if you are having difficulty with enemies leaking through your defenses.
* In the first two games, using a Heart Box on a boss level will give you enough lives to allow a boss to leak without losing the level. This does not work in Vengeance, where a boss takes away 999 lives upon leaking.
Lives.png|The Lives, Gold and Wave counter in a standard Kingdom Rush: Vengeance level
LivesHeroic.png|The Lives, Gold and Wave counter in a Heroic Challenge in Kingdom Rush: Vengeance
LivesIron.png|The Lives, Gold and Wave counter in an Iron Challenge in Kingdom Rush: Vengeance
Category:Game Mechanics