Unreal Tournament launched in 1999 from Epic Games as a fast arena shooter built around frag streaks, and its announcer system turned multi-kills into shared spectacle. Double Kill was the first step in that ladder, before Multi Kill and beyond, so players learned to chase the voice itself. The callout spread through LAN parties, frag movies and later video edits, sitting alongside other tactical callouts like enemy spotted and the bomb has been planted in gaming culture. Its booming delivery remains instantly recognisable to shooter fans decades later.