Health

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Health, or Health Points ("HP", occasionally "Hit Points"), represents a character's physical status in a video game. Most Source engine games use a traditional health points system, where a character is spawned with a certain number of health points which are displayed in the HUD. Taking damage will subtract from the character's health, and the character will die when HP reaches 0. Most games offer powerups and items to restore health.

Bug:Sometimes when a player is in godmode in the Source engine, the player may reach 0 health but still be alive. [todo tested in?]

Bug:Player's or NPCs' health is not updated instantly when it's modified with addoutput "health [number]" input. Health will update only when player or NPC receives damage or gains health. If player's or NPC's health is depleted completely (set to 0 or lower) they will still be alive but will die in one hit from any weapon. (tested in:

Half-Life 2)

Some games, such as Portal, use an alternative "regenerating health" scheme, where the player's health quickly regenerates when the player is not taking damage. The health may also not be displayed onscreen.

While in many multiplayer games all characters start with the same amount of health, class-based games such as Team Fortress 2 sometimes assign different starting health values to different classes.