Bestiary



The Bestiary is an in-game catalog of Terraria's various entities, including enemies, NPCs, critters, and bosses. It can be viewed by opening the inventory and pressing on the  book icon located to the right of the item trash can, at the bottom right of the inventory. The Bestiary displays a description and basic statistics for each entity, including health, damage, defense, and knockback resistance, as well as advanced information like item drop rates. Entries can be sorted and filtered by various criteria, like stats, locations, times, events, etc.

Initially, no information is available about any particular entity. There are four stages of progression for each entity, each unlocked based on a player's current experience level with that entity in the world:
 * 1 kill: Name and portrait display
 * 10 kills: Stats and description display
 * 25 kills: Item drop lists display
 * 50 kills: Item drop rates display

Progression is tracked by various methods, depending on the entity type:
 * For an enemy, kills of that enemy are counted (kills made before the 1.4.0.1 update will not count). Enemies with multiple variants (such as Zombies) have a separate tracker for each variant (50 Arrow Zombie kills, 50 Gel Zombie kills, etc.).
 * For a boss, only one kill is required to display all information.
 * For a critter, the counter advances based on how many of that critter type the player came into close proximity with.
 * For a town NPC, the number of times the player opened the dialogue window of that NPC is counted.

At the bottom of the Bestiary is a bar that fills as the Bestiary is completed, allowing players to track their progress. Bestiary progress is tied to a world, not a character. Unlocking 10% of the entities in the Bestiary makes the Zoologist NPC available, who sells progressively more items (e.g. the Cat License) as the player completes more of the Bestiary. Unlocking all information for the entries is not a requirement for this, as long as the entries themselves have been unlocked.

There are 520 Bestiary entries in total.

Filters
From top-left to bottom-right in the Bestiary display. The "Number of creatures" column may show double-counted creatures that appear in multiple biomes.

Tips

 * Enemy-spawning statues can be used to fill out information on less common enemies, like the Medusa or Mimics.
 * The entries for the Dungeon Guardian and Tortured Soul can be obtained by talking to the Clothier and Tax Collector, respectively.
 * In order to reach 100% Bestiary completion, a player-made Corruption or Crimson biome must be made, depending on which one the world already has. This includes a variant of the Surface, Underground, Desert, Underground Desert, Snow, and Ice biomes to collect all Crimson/Corruption variants of enemies and critters.
 * The Dryad, when spoken to in a Graveyard, sells seeds of the opposite evil biome.
 * Worlds with the world seed "05162020" include both evil biomes.
 * Furthermore, it is necessary to trigger the seasonal events Halloween and Christmas to unlock Santa Claus and all variants of enemies and critters.
 * Reaching the final waves of the Pumpkin and Frost Moons triggers a single day of Halloween/Christmas.
 * Changing the device's date allows skipping the time that would have to be waited otherwise. See the events' pages for details.


 * Enemies that do not have exclusive drops or do not even drop coins (such as the Gnome) only need to be killed 10 times to unlock all possible information.

Trivia

 * The Pirate's Curse and Spiked Slime are the only beatable enemies that do not have Bestiary entries.
 * Unlike enemies like the Zombie and Skeleton, the Shadow and regular variations of Mimics do not have separate entries.
 * The maximum Bestiary completion percentage that can be obtained in a pre-Hardmode world (including bringing items over from a Hardmode world) is 64.42%, or 335 entries.
 * The entry for the Lost Girl is likely a reference to the American reality series .
 * The entry for the Town Bunny references the Rabbit Perch, a vanity item that displays a bunny resting atop the player's head.

History
Bestiaire