The Gamma Case is a weapon case consisting of community weapons and new knife finishes released as part of the June 15, 2016 update. It requires a Gamma Case Key to be opened and cannot be opened with a standard CS GO Case Key.
The Gamma Case was the first CS GO case to introduce brand new CS GO skins for the current knives in the game like the Karambit and the M9 Bayonet in almost a year and a half of the same CS GO skins being used on the CS GO knives. With every new knife launch since the launch of the Gamma Case, such as the Bowie Knife or the Shadow Daggers, no new skins and no Chroma Case skins have been used on those knives, until the launch of the Spectrum Case, which introduced the old Chroma Case finishes for all the new knives launched after the Chroma Case.
The CS GO skins present in the Gamma Case are:
or an Exceedingly Rare Special Item!