Each turn, a player repeatedly rolls a die until either a 1 is rolled or the player decides to "hold":
If the player rolls a 1, they score nothing and it becomes the next player's turn.
If the player rolls any other number, it is added to their turn total and the player's turn continues.
If a player chooses to "hold", their turn total is added to their score, and it becomes the next player's turn.
The first player to score 100 or more points wins.
The Game (with two dice):
Two standard dice are rolled. If neither shows a 1, their sum is added to the turn total.
If a single 1 is rolled, the player scores nothing and the turn ends.
If two 1s are rolled, the player’s entire score is lost, and the turn ends.
If a double is rolled, the point total is added to the turn total as with any roll but the player is obligated to roll again (possible sub-variation of the two-dice game)