Rocks & Diamonds is a puzzle video game with elements of Boulder Dash, Supaplex, Emerald Mine, Solomon's Key, and Sokoban clone. It is free software under the GNU GPL-2.0-only license created by Artsoft Entertainment and designed by Holger Schemel. Rocks & Diamonds features gameplay elements from all the games mentioned above, usually in the form of sub-games, although levels can feature combinations of elements from any of the games mentioned above, as well as new ones.