K.D. Marshall, also known as "rsg_rune," is a Fighting Game Player from the United States. They play titles such as Windjammers (Fightcade Mortal Kombat 11, Samurai Showdown, Soul Calibur VI, Street Fighter V & Super Street Fighter II Turbo, Super Smash Bros. Ultimate, Tekken 7, and Ultimate Marvel vs Capcom 3.
He has competed in tourneys like 2nd Impact: Electric Boogaloo, Alpha Attack - October 2018, AnimEVO 2020, CEO 2018, Kurasu Henko: Cleric, Michigan M@sters 2019, Second Impact - A Dance With Dragons, and Tekken Calibur Crusade 5.