US Patent 11450178 Low-complexity reel symbol replacement strategy with clustering

In an electronic gaming device, instances of a target symbol are swapped in to symbol positions of one or more reel strips using one or more index tables to identify the symbol positions at which to swap in the instances of the target symbol. The index table(s) can be configured to cluster instances of the target symbol according to a deterministic approach. Subsequently, spin results are determined for one or more spins of reels using the reel strips.