Similar to some other CS2 skin collections, this one is tightly connected to a specific map. Obviously, it’s Cache. The set of cosmetic items was released around the time when Cache joined the official active pool in CS:GO. The Cache Collection itself was part of the ESL One Cologne 2014 update, which was released for that Counter-Strike esports event.
The map is about a radioactive disaster, and you certainly can feel this from most skins of the collection. Skulls and warning signs are on most of the weapons. FAMAS | Styx also has a disturbing blood-red color.
Toxic shades are often used on skins. The Cache Collection doesn’t feature extremely expensive skins. Galil AR | Cerberus has a high rarity level; it’s a Restricted item.