|name = Factory Zero
|summary = You survived The Missing Link using no Praxis kit|Praxis kits, weapon|weapons, or explosives. Whoa.
|points = 70
|location = Anywhere
|image = DXHR Factory-Zero achievement.jpg
'''Factory Zero''' is an The Missing Link walkthrough/trophy in ''The Missing Link|The Missing Link DLC'' for ''Deus Ex: Human Revolution''. It is earned by completing the DLC without upgrading augmentations and using weapons.
Factory Zero, like the Pacifist and Foxiest of the Hounds achievements in ''Deus Ex: Human Revolution'', requires adhering to a specific playstyle from the start of the game until the ending credits.
As the achievement description says, you must fulfill these requirements throughout the whole DLC:
*Do not allocate any Praxis points, no matter how they were acquired: through level up or after collecting a Praxis kit.
*Do not fire ''any'' weapons. Takedowns (lethal and non-lethal) are not considered weapons and can be used freely.
*Do not throw grenades or place mines.
*Throw red explosive barrels and fire extinguishers.
*Pick up all items safely and sell them. However, it is not necessary to sell anything, because the starting credits (2500) are more than enough to buy all energy boosters and extra health items in the shop. ''Items that can be picked up include:''
**Rocket launcher parts for the The_Missing_Link_walkthrough#S3 .E2.80.94 Quinn.27s scavenger hunt|Quinn's Scavenger Hunt side-quest.
**Quest items: Burke's eye, Data Storage Devices and the Trauma Kit.
*Use healing and energy restoring items.
*Equip, aim, upgrade and reload weapons.
* Equip explosives.
* Trigger explosive wall mines.
* (?) Trigger typhoon turrets.
* Get compromised and set off alarms, although that would make your mission considerably harder. You should try your best to keep a low profile and stay undetected throughout.
'''All of the Above'''
It is possible to obtain this achievement by using explosive barrels to destroy the large crate blocking the necessary vent, and then using several of the small boxes laying around to access the raised area in the ducts (2 should be enough). These can be carried (in the proper orientation) though the ducts, and dropped carefully to turn them on end. A well-thrown fire extinguisher can destroy the gas mechanism, but may require several attempts.
*Factory Zero can be received simultaneously in one playthrough with all other achievements, aside from the That Old Adage (which requires upgrading Social Enhancer augmentation). You can, although, save just before talking with Quinn, talk to him and complete Factory Zero and then reload and upgrade the CASIE augmentation.
*All of the Above can be completed with some creativity (see Talk:Factory Zero of the Above|discussion page). The more traditional way to complete it requires firing a weapon, Jump Enhancement, and Move/Throw Heavy Objects which would prevent completing Factory Zero. You could also create a save, spend Praxis points to complete All of the Above, reload the save, and continue on finishing Factory Zero.
*It is possible to do a "clean sweep" of enemies with melee take-downs and receive Ghost and Smooth Operator bonuses at the same time in every area. Ghost cannot be obtained after the constant alarm state is triggered after leaving Tiffany Kavanagh|Kavanagh's lab.
*The easiest way to complete this objective is to simply not pick up anything that is not used for boosting your energy (bars, boxes, and jars) or opening paths (pocket secretaries).
Video:Factory Zero playthrough for The Missing Link|600px|left|Factory Zero playthrough for The Missing Link
Category:Deus Ex: Human Revolution - The Missing Link achievements
Category:Deus Ex: Human Revolution achievements