The Abandoned Lab is a massive underground dungeon that generates upon world generation. Unlike other areas in Terraria, the Abandoned Lab has a static structure and will always be the same in all worlds. With its dangerous defenses and debuffs, the player must exercise caution prior to entering.
The Abandoned Lab will always be generated at the same location, depending on map size:
|Map Size||Lateral Position||Depth|
|Small||600' East||824' Underground|
|Medium||820' East||1244' Underground|
|Large||1020' East||1904' Underground|
The Abandoned Lab can only be initially visited in Hardmode, after the player has defeated all three Mechanical Bosses; attempting to visit the Lab prior will unleash invincible Laboratory Drones that will relentlessly attack the player. Following the defeat of the Mechanical Bosses, the drones will be deactivated, allowing access to a portion of the Lab, including The Janitor, Stage 3 Infected Scientist, and Irradiated Behemoth mini bosses, as well as a number of items from Petrified Wood Chests. Each mini boss drops a Lab Access Panel, which deactivates the laser security systems to unlock additional sectors of the Lab.
The rest of the Abandoned Lab becomes accessible after the player has defeated the Moon Lord and crafted one of the Luminite Pickaxes, or by means of the Laser Drill which have sufficient pickaxe power to break the Dark Sludge Blocks blocking access to the rest of the Lab. Additionally, the player gains the ability to open Lab Chests with a Keycard crafted from Luminite Bars. After defeating Blisterface, the player will be rewarded with the Nano Pickaxe which can break Black Sludge Blocks, allowing complete access to the Abandoned Lab, including the Protector Volt and MACE Project mini bosses and the final boss of the dungeon: Patient Zero.
Contents[edit | edit source]
|Characters||Unique Treasures||Unique Drops|
From Lab Cabinets:
From Petrified Wood Chests:
From the Hazmat Suit corpse:
From Lab Chests:
From the special Lab Chest:
From All Abandoned Lab enemies:
From The Janitor:
From Irradiated Behemoth:
From Protector Volt:
From MACE Project:
From Patient Zero:
Notes[edit | edit source]
- Players with the Chaos State debuff in the Abandoned Lab prior to defeating Patient Zero will take -2000 health per second, instantly killing them if they attempt to use the Rod of Discord to skip sections of the Lab.
|Special Biomes and Structures||Abandoned Lab • Ancient Hut • Crashed Ship • Hall of Heroes|