Regenerative Bio-steel is a material developed by Egon Stetmann after researching the cellular structure of zerg organisms. It uses regenerative nanobots to slowly repair the hull of whatever vehicle it is made from. While the process is slower then that of an SCV repair, it can serve to aid frontline vehicles when the need is dire.[1]

Regenerative Bio-steel was later developed by Reigel for use by the covert ops crew of Agent Nova Terra, after researching unique mutations in the feral zerg that attacked Tyrador IX.Paradise [2]

Game EffectEdit

Wings of LibertyEdit

Damaged mechanical units recover hit points when out of combat, at a rate of 0.6015 each second.[1]

Our ship and vehicle hulls are now made from a material called Regenerative Bio-Steel. This material uses internal nanobots to slowly repair any damage the hull sustains. While this regeneration process is much slower than conventional SCV repairs, it can be the difference between life and death if no SCVs are available.

Campaign Acquisition
Acquired from Hyperion laboratory for 20 zerg research points

Nova Covert OpsEdit

Equipped mechanical unit regenerates 10 HP a second when out of combat.

Campaign Acquisition
Acquired from Destroy all zerg hatcheries in "Trouble in Paradise."

Heroes of the StormEdit

Heroes DevLog2

The following section contains information from Heroes of the Storm and is not canon to StarCraft continuity

Regenerative Bio-Steel appears as a talent for Sgt. Hammer in Heroes of the Storm.[3]


  1. 1.0 1.1 Blizzard Entertainment. StarCraft II: Wings of Liberty. (Activision Blizzard). PC. Zerg research (in English). 2010.
  2. Blizzard Entertainment. StarCraft II. (Activision Blizzard). PC. Mission: Nova Covert Ops, Trouble in Paradise (in English). 2016-08-02.
  3. Blizzard Entertainment. Heroes of the Storm (Blizzard Entertainment) (in English). June 2, 2015