Spelunky HD is the 2012 high-definition remake of Derek Yu's indie platform game Spelunky, first released as freeware in 2008, in which players explore procedurally generated caves collecting treasure, including gems. The gem pickup chime is one of the game's small reward sounds, designed to make collecting treasure feel instantly satisfying. As clips from the game spread on YouTube and Twitch, and its sounds were shared on soundboards, this short ding became a handy shorthand for a win or a lucky find, and creators still use it to mark a small reward without needing any dialogue or explanation.