F/GO Duel is a Miniature Board Game revolving around Mini Figures and Command Card. Similar to another official F/GO Tabletop game "Fate/Grand Order Summon Pencil Servant", this game also heavily involves "gacha elements" (Heroic Spirit Summoning). Battles using these mini figures will take place on top of a board (battlefield) and players will use Command Card to execute certain attacks Source: Fate/Grand Order wikia