Determine who goes first through a roll off Yahtzee is played with 5 dice, and the tracking of specific rolls and points will require a Yahtzee score card, so each player will need their own score sheet. With one player, you’re only competing against your own best score playing with more than four players makes for slow game play as you wait for your turn.
While the official rules of Yahtzee state that it’s for one or more players, Yahtzee is best suited for 2-4 players.