EVE



EVE is a modified version of ADAM which allows the use of Plasmids. The player's current EVE level is shown by a bar meter with blue liquid; it decreases when the player uses a plasmid, and refills when the player uses means of replenishment. When EVE reaches zero, the use of plasmids is unavailable to the player. The EVE meter has a hypodermic needle symbol on its left, denoting the amount of EVE Hypos currently carried by the player.
 * Although not stated but quite possible is that eve is a form of energy or food for the Plasmid based cells since the mutated cells would require a lot of energy to use or make the plasmid possible witch would cause the Character to have a higher metabolism. This is further explained by the ability of existing as a game play component and how Consumables replenish eve.{citation needed}

BioShock
Jack's maximum amount of EVE can be increased by completing Research levels on Little Sisters, and purchasing EVE Upgrades from Gatherer's Gardens.

Replenish EVE by:
 * Using EVE Hypos
 * Using certain Consumables
 * Performing certain actions with select Gene Tonics equipped

BioShock 2
Subject Delta's maximum amount of EVE can be increased by completing research on Big Sisters, and purchasing EVE Upgrades from Gatherer's Gardens.

Replenish EVE by:
 * Using EVE Hypos
 * Using certain consumables
 * Performing certain actions with select Gene Tonics equipped

BioShock 2 Multiplayer
EVE is replenished by collecting EVE Hypos and visiting Circus of Values Vending Machines. The player's maximum amount of EVE can be increased by equipping the EVE Saver tonic, and the Metabolic EVE tonic will allow EVE regeneration during a match.

Trivia

 * EVE and ADAM are a reference to the Biblical characters Adam and Eve, who were granted immortality in the Garden of Eden until they fell from grace. This parallels the fall of Rapture and its citizens.
 * The original EVE Hypo (as seen in the BioShock X06 trailer ), was a smaller, leaner needle filled with a green murky liquid.
 * The symbol for EVE is an apple, which is an reference to the forbidden fruit which Eve, then Adam, ate that caused them to be punished by God.