All Games
A21

Blackjack

Classic casino card game. Get as close to 21 as possible without going over.

Easy5–15 min1–6 playersPush Your LuckCasino

Log in to create matches or join from the lobby.

Open Matches

No matches available. Create one!

Play Online

Hidden information is never shown to other players. Detailed log can include your own extra information.

1 player · 5m/turn · CPU: Medium · Log: Basic log

Solo Play

Hidden information is never shown to other players. Detailed log can include your own extra information.

1 player · CPU: Medium · Log: Basic log

Blackjack — Rules

Blackjack

Players & Equipment

  • 1 player vs the dealer (house)
  • 6 standard decks (312 cards), configurable

Objective

Get a hand value closer to 21 than the dealer without going over (busting).

Card Values

CardValue
2–10Face value
J, Q, K10
Ace1 or 11

An Ace counts as 11 unless that would cause a bust, in which case it counts as 1. A hand with an Ace counted as 11 is called a soft hand.

Gameplay

1. Betting

Place your bet before each round. Minimum bet is 5, maximum is 500.

2. Deal

You receive 2 cards face up. The dealer receives 2 cards — one face up, one face down (the hole card).

3. Blackjack

If your first two cards are an Ace and a 10-value card (10, J, Q, K), you have a Blackjack and win 3:2 (1.5× your bet), unless the dealer also has Blackjack (push).

4. Insurance

If the dealer's face-up card is an Ace, you may take insurance — a side bet of half your original bet. If the dealer has Blackjack, insurance pays 2:1. Otherwise, you lose the insurance bet.

5. Player Actions

ActionDescription
HitDraw one more card
StandKeep your current hand
Double DownDouble your bet, receive exactly one more card, then stand
SplitIf you have two cards of equal value, split them into two separate hands (each with its own bet)
SurrenderForfeit half your bet and end the hand (variant, first two cards only)

6. Dealer's Turn

After all player hands are resolved, the dealer reveals their hole card and draws according to fixed rules:

  • 16 or below: Must hit
  • 17 or above: Must stand
  • Soft 17 (variant): Dealer hits on soft 17 if enabled

7. Results

OutcomePayout
Win1:1 (bet returned + equal winnings)
Blackjack3:2
Triple 7s2:1 (variant)
Suited 7773:1 (variant)
Push (tie)Bet returned
LoseBet lost
SurrenderHalf bet returned

Variants

OptionDescription
Deck CountNumber of decks in the shoe (default: 6)
Soft 17Dealer hits on soft 17 (default: off)
SurrenderAllow late surrender (default: off)
Triple SevensBonus payout for three 7s: 2:1 (unsuited) or 3:1 (suited). Wins instantly regardless of dealer hand (default: off)

Game Length

The game lasts 20 rounds. You start with 1,000 chips. The game ends when all rounds are completed or when you run out of chips. Try to finish with as many chips as possible.

Strategy Tips

  • Stand on 17+: Never hit a hard 17 or above
  • Always split Aces and 8s: Two hands of 11 or 8 are better than 12 or 16
  • Never split 10s or 5s: 20 is a strong hand; 10 is better to double
  • Double on 11: You have the best chance of hitting 21
  • Don't take insurance: It's a bad bet in the long run