RoundfelloRoundfello

๐Ÿƒ How to play

Thirty-One rules

Three cards. One suit. Knock when you think you've got them beat.

Players
2โ€“9
Time
15โ€“30 min
You need
Standard playing cards

The goal

Stay in the game. The lowest hand each round loses a life; lose all your lives and you're out. The last player with a life left wins.

How a hand works

  1. 1

    Deal three cards

    Each player gets 3 cards. Flip one card to start the discard pile; the rest is the stock.

  2. 2

    Draw and discard

    On your turn, take the top stock card or the top discard, then discard one card.

  3. 3

    Count one suit

    Your hand is worth the total of your cards in a single suit. Aโ™  Kโ™  5โ™ฅ is worth 21 (the spades).

  4. 4

    Knock

    Instead of drawing, you may knock. Everyone else gets exactly one more turn, then hands are shown.

  5. 5

    Hit 31

    If you ever hold 31 (an Ace plus two 10-point cards in one suit), show it at once โ€” the round ends immediately.

Who loses a life

  • Lowest hand after a knockโˆ’1 life
  • Knocker has the lowest handโˆ’2 lives
  • Someone shows 31Everyone else โˆ’1
  • Tie for lowestAll tied players โˆ’1
  • Card valuesA 11 ยท K Q J 10 ยท pips

Roundfello starts everyone with 3, 4 or 5 lives and keeps playing until only one player has any left.

A knock

  1. 1.Leo knocks holding Kโ™ฅ Qโ™ฅ 4โ™ฃ = 20.
  2. 2.Mia has Aโ™ฆ 9โ™ฆ = 20. Ava has 10โ™  9โ™  8โ™  = 27.
  3. 3.Leo and Mia tie for lowest โ€” but Leo knocked, so Leo loses 2 lives and Mia loses 1.

Winning tips

  • Knock early with 25+ โ€” others may not catch up in one turn.
  • Watch what others pick up from the discard pile to spot their suit.
  • Only one suit counts โ€” don't hang on to mixed high cards.

Popular house rules

  • Three of a kind is worth 30ยฝ in many homes.
  • Some tables let you 'ride the bus': your last life lets you stay in until you lose again.
  • Some tables don't allow knocking on the first round.

Let Roundfello keep score

Roundfello adds up every Thirty-One hand for you, with live standings and a champion at the end.

Start keeping score