Game modes · Mini game · unrated
21 Blackjack
21 Blackjack takes the card game to the dartboard. Every round, each player throws one visit and adds up the darts at full value. Go over 21 and you’re bust. Whoever hits exactly 21, or gets closest under it, takes the round.
- Two or more players, bots welcome
- 3, 5 or 9 rounds
- Stand whenever you like with Next
- Unrated, so it never touches your average
- 7= 7
- 8= 15
- 621!
Exactly 21!
NextLast round to Cleo
The rules
How 21 Blackjack works
One visit per round, and every dart adds to your total.
- Add up your dartsEvery dart counts its full value. A treble 7 is 21 in one dart, a double 10 is 20.
- Over 21 is bustGo past 21 and the visit counts nothing for this round. Your turn is over straight away.
- Stand with NextHappy with your total? Press Next and keep it, like standing at the table. On exactly 21 your visit ends by itself.
- Closest to 21 takes the roundWhen everyone has thrown, exactly 21 or else the highest total under it wins the round. A tie: all of them win it.
- Most rounds wonAfter the last round the player with the most rounds won takes the game. A tie at the top means one more round.
The running total
Dart by dart towards 21
Under every dart the app shows where you stand: = 8, = 13, 21! or Bust.
- T721!
- –Dart 2
- –Dart 3
One dart can do it. Darts count their full value, so the treble 7 is 21 straight away.
- D10= 20
- 121!
- –Dart 3
Double 10 is 20, the single 1 makes 21. On 21 your visit is over.
- 8= 8
- 5= 13
- 4= 17
Three darts, 17. That is your total for the round.
- T6= 18
- 5Bust
- –Dart 3
2323: bustTreble 6 is 18, the 5 takes it to 23. Bust: the visit counts nothing, the third dart is not needed.
- 25Bust
- –Dart 2
- –Dart 3
2525: bustThe bull is 25 on its own, and that is already bust.
Standing
Throw on, or press Next
With two darts gone, the third one can help or ruin the round. Here is what it does from 16.
- 10= 10
- 6= 16
- –Dart 3
5 to go. Throw on, or press Next to stand
- Press Next16
You stand. 16 is your total for the round.
- 1 to 5, double 1 or 2, treble 117–21
The lit fields. Anything from 17 up to exactly 21.
- Off the board16
A miss scores 0, so you keep your 16.
- Anything elseBust
A 6 or more takes you over 21 and the visit counts nothing.
Each round
Who takes the round
Four rounds with three players and the app’s panel after each one.
- This roundWonAnna18–Ben
23Bust–Cleo21 ✓+1Last round to Cleo
Exactly 21 beats everything. Cleo takes the round.
- This roundWonAnna19+1Ben17–Cleo
24Bust–Last round to Anna
Nobody on 21, so the closest under it wins. Anna’s 19 beats Ben’s 17.
- This roundWonAnna20+1Ben20+1Cleo14–
Last round to Anna, Ben
A tie at the top: Anna and Ben both take the round.
- This roundWonAnna
22Bust–Ben25Bust–Cleo30Bust–Last round: everyone bust
Everyone bust, so nobody wins this one.
The whole game
A tie at the top means one more round
A game of five rounds. The extra round only comes when the top is level.
| 1 | 2 | 3 | 4 | 5 | 6Extra round | Won | |
|---|---|---|---|---|---|---|---|
| Anna | 21 | 15 | 18 | 20 | 17 | 19 | 3 |
| Ben | 18 | 19 | 20 | 14 | 2 | ||
| Cleo | 17 | 21 | 12 | 19 | 18 | 2 |
Settings
Two settings to play with
The defaults make a game of five rounds without the bonus.
- Rounds3 · 5 · 9
- 3
- 5
- 9
5 rounds make a good game. 3 is quick, 9 takes a while. Whatever you pick, a tie at the top after the last round means one more round.
- BlackjackOff by default
- D10= 20
- 121!
- –Dart 3
Off+1On+2On: a 21 with two darts or fewer counts as two rounds won, like a blackjack at the table. A 21 with three darts still counts one.
In the game
What you see on screen
Your total is the big number in the middle, the round so far is in the panel next to it.
- The total: it adds up dart by dart, and every dart chip shows the running total underneath, for example = 7, = 15, 21! or Bust.
- The label above it: the round and what is left, for example Round 3/5 · 6 to 21.
- The hint line: before your first dart it reads Add up your darts: over 21 is bust. Then 3 to go. Throw on, or press Next to stand, Exactly 21! or Over 21: bust, the visit counts nothing.
- The board: it marks a field that takes you to exactly 21, the single of what is left or the treble 7 before your first dart.
- The panel: This round lists every total so far, Won the rounds won. After the round it says Last round to Cleo or Last round: everyone bust. In an extra round the cards say Extra round.
Setup
Start a game
Open Party & duels in the game setup and pick 21 Blackjack, or search for it by name. The rest works like any match.
- PlayersTwo or more at your board, plus bots if you like.
- Rounds3, 5 or 9, 5 by default. See the settings.
- BlackjackOff by default. On: a 21 with two darts or fewer counts as two rounds won.
- LegsOne leg, first to 2, first to 3, or more. Every leg starts at 0 rounds won. There are no sets in mini games.
- Who throws firstThe first player in the list, a bull-off or random. From the second leg on, the next player starts.
- Unrated21 Blackjack doesn’t count towards your average, statistics or leaderboards. Only your wins are recorded.
Tips
How to win more rounds
- Look at the panel before you stand. If someone already stands on 18, your 17 can’t win the round. Throw on.
- Keep away from the bull. The outer bull is 25 and bust on its own, the bullseye even more so.
- Mind the neighbours. The 1 and the 5 sit either side of the 20. When you need a little, a dart that drifts into the 20 is bust.
- A miss doesn’t hurt. A dart off the board scores 0 and your total stays where it was. Only going over 21 costs you the visit.
- With Blackjack on, start big. A two-dart 21 counts double. After a 20 you need a 1, after a 19 a 2, and the treble 7 does it in one.
Game modes
More ways to play
More counting games: in Nine-Dart Century you get nine darts to come as close to 100 as you can, High Score simply rewards the biggest total, and All Fives only pays for totals that divide by five.
Who gets closest to 21?
Open the app, pick 21 Blackjack under Party & duels and throw your first visit. Play with friends at your board or against a bot.