Sol's RNG is a Roblox rolling game where players repeatedly roll for increasingly rare auras, and the cutscene audio marks the moment a noteworthy roll is revealed. Clips of high-rarity pulls spread through Roblox gameplay videos, streams and short-form edits, where the sound became shorthand for a lucky outcome. It remains in use because it instantly signals rarity to viewers who know the game, even in videos that show only the reaction and not the full roll.