House of the Dragon

Expanding Collector Reel is a unique reel mechanic where a specific 'Collect' scatter symbol, upon landing, visibly expands. It covers the entire vertical height of its reel, turning that reel into a powerful full-reel collector. This full-reel collector then gathers all visible instant cash prize symbols from any other active reels on the game grid.

A Symbol Collector is a powerful special symbol that primarily appears in bonus rounds like 'Hold and Respin'. Its sole function is to 'collect' the values of other cash value symbols (like coins) on the screen and absorb them into its own value. It goes beyond simply adding values, playing the role of consolidating scattered small values into one massive value to exponentially amplify the potential of the bonus round.