Counter-Strike: Global Offensive (CS:GO) weapon cases, realistic textures, detailed designs, variety of skins, rare knives, gloves, shimmering effects, metallic finishes, opening animation, in-game economy, collectible items, tradeable, market value, random drop, game integration, e-sports reward, inventory display, key purchase required, unboxing excitement, mystery content, community market, Steam platform, digital goods, cosmetic upgrades, player customization.