ElementO was designed as a learning tool for the Periodic Table of Elements. Players acquire elements by landing on them. When another player lands on an element, which is owed, they must pay the owner protons. The last player with protons wins. This game is a scientific variant of Monopoly. If you are into science, teaching or the Periodic Table of Elements this game is for you. The game board depicts the Periodic Table of Elements. - BoardGameGeek