Fuji Koro can be played in a competitive mode with 2 to 6 players or a cooperative mode with 1 to 6 players.
Players will try and gather sacred scrolls and blueprints for magical weapons, gather resources, craft the best possible gear, and try to get out of the volcano before it fully erupts. To make matter worse, players will encounter fantastical dragons on their journey throughout the volcano, that they will have to try and defeat by themselves or with the help of other players.
The game continues until the end phase of the game, which is triggered by one player reaching 30 victory points. Once that happens, players will have 8 final turns to escape the volcano.
To win the game, a player will have to score the most victory points by defeating dragons, exploring the cave, crafting the right weapons and bringing magical gear, dragon teeth and monks to the Shōgun during the end phase of the game.