Butterfly Knife | Blue Steel was added to the game on July 1, 2014, alongside the start of Operation Breakout. The skin is available in the Operation Breakout Weapon Case.
The blade of the knife has been cold blued, which provided the steel surface with pale purple, blue and green areas. Traces of patina are also present on the blade. The handle is unpainted and complemented with inserts made of cold-blued steel.
The skin is available in all conditions, and its Float Value is unlimited. At levels of wear close to the maximum, small abrasions appear along the cutting edge, the blade is coated with a layer of patina and looks significantly darker.
The pattern index affects the location and ratio of blue, purple and green areas. Special or rare variations of the pattern are absent.
The quality of Butterfly Knife | Blue Steel is Covert. The skin has a StatTrak option and belongs to the "Blue Steel" series.
The skin became very popular when it was added to the game, but over time its popularity has significantly decreased. Today, Butterfly Knife | Blue Steel is rarely seen in the game.