Rainbow Six Siege, Ubisoft's tactical first-person shooter released in 2015, made sound a core part of play, with footsteps, gadgets and breaching noises telling players where enemies were moving. Clips of its distinctive audio spread through gameplay videos, streams and soundboards, where fans reused short effects outside matches. Footsteps remain especially popular because they instantly signal a Rainbow Six match to other players, and editors borrow them to add game-like tension to unrelated videos, from comedy sketches to horror-style shorts.