Neosteel Frame is a standard type of armor system possessed by terran military structures, researched at the engineering bay. The armor can be upgraded with several systems to make it stronger.

For lore on terran armor, see Neosteel

StarCraft IIEdit

NeosteelFrame SC2 Game1
Neosteel Frame
Purchased from Engineering bay
Hotkey N
Cost 100 Minerals Terran SC1 100 Gas Terran SC1 79Time SC2 Game1

Wings of LibertyEdit

In StarCraft II: Wings of Liberty, Neosteel Frame is purchased in the Hyperion's armory in the single-player campaign instead of the engineering bay.[1]


The following section contains information from a previous version of StarCraft II which is no longer valid.

The Neosteel Frame upgrade changed for the start of the StarCraft II beta. The previous version had the following attributes:

Neosteel Frame

This upgrade increases the armor of the missile turret and bunker.[2]

The upgraded bunker can hold six units rather than four.[3][4] The upgraded bunker appears bigger and taller.[5]

The upgrade was available in the multiplayer game as of May 2009.[6]

Purchased from Engineering bay[6]
Cost 100[7] Minerals Terran SC1 100[7] Gas Terran SC1 110[7]Time SC2 Game1


  1. Blizzard Entertainment. StarCraft II: Wings of Liberty. (Activision Blizzard). PC. Armory upgrades (in English). 2010.
  2. Terran Missile Turret. StarCraft II Armory. Accessed 2009-10-04.
  3. Dustin Browder, Rob Pardo. 2008-10-11. Blizzcon 2008: StarCraft II Gameplay Discussion Panel (Part 3). Accessed 2008-10-11.
  4. Gamespy staff, Dustin Browder. 2008-12-23. StarCraft II (PC). Gamespy. Accessed 2008-12-24.
  5. Yes, I can confirm that some units get visual upgrades when you boost them through research. Zerglings, Marines and Banelings are just some examples though, as there are other units that are getting a visual upgrade.

    For example, Battlecruisers have the ability to choose between three specializations:
    - Defensive Matrix (a shield that absorbs damage)
    - Missile Pods (Air to Air AoE damage)
    - Yamato Cannon (honestly, do I need to introduce this one? :) )
    Each one of these specializations changes the graphic of the battlecruisers, thus making it easily recognizable.
    Just to clarify things up: you can only have one specialization per Battlecruiser, and once you choose you cannot switch to another one.

    But not only units are affected by this visual upgrades, even buildings are being visually upgraded.
    Let's talk about Bunkers: when the NeoSteel Frame upgrade is completed (+2 cargo space) the bunker actually gets bigger and taller.
    Zhydaris. 2009-12-01. Visual Upgrades? StarCraft II General Discussion Forum. Accessed 2009-12-01.
  6. 6.0 6.1 StarCraft Legacy staff. 2009-05-30. StarCraft II Impressions Translations - May 21, 2009. StarCraft Legacy. Accessed 2009-05-30.
  7. 7.0 7.1 7.2 Terran Engineering Bay. StarCraft II Armory. Accessed 2009-10-04.