Counter-Strike: Condition Zero is a first-person shooter released in 2004 as part of the long-running Counter-Strike series, and its in-game audio includes distinct footsteps for moving across different surfaces. Clips like this one were later ripped from gameplay and shared on soundboards, where creators could reuse them without recording their own effects. It sits alongside other familiar Counter-Strike sounds, and has stayed useful because it is short, recognisable to players, and neutral enough to fit stealth, comedy and gameplay content alike.