← Back to all games
Games

Blackjack

Blackjack is one of the best-known card games in online casinos. Your goal is to get closer to 21 than the dealer without going over. Online, blackjack is offered either via a Random Number Generator (RNG) or in live-dealer studios with a real shoe.

Blackjack

Overview

  • You play against the dealer, not other players.
  • Cards 2–10 count their face value, face cards 10, the ace 1 or 11.
  • A blackjack is an ace plus a 10 or face card and usually pays 3:2.
  • Online versions differ mainly in dealer rules, payouts and side bets.

Rules

  1. You receive two face-up cards; the dealer gets one face-up and one face-down (except in European variants).
  2. Possible actions: Hit, Stand, Double Down, Split, sometimes Surrender.
  3. Going over 21 = bust and immediate loss.
  4. The dealer draws to 17 (Stand on 17) or hits soft 17 depending on the table.

How to play

  1. Pick a table with clear limits and a 3:2 payout, not 6:5.
  2. Read the table rules (S17/H17, double rules, surrender).
  3. Play strict basic strategy, not gut feeling.
  4. Set a session budget and stick to it.

Tips & Strategy

  • Memorize the basic-strategy chart for the exact variant you play.
  • Always decline insurance — mathematically a losing bet.
  • Always split aces and eights, never tens or fives.
  • Avoid side bets like Perfect Pairs or 21+3 — they carry a high house edge.

Common mistakes

  • Playing 6:5 tables instead of 3:2.
  • Standing on 16 versus a dealer 7.
  • Taking insurance against an ace.
  • Chasing losses with bigger bets (Martingale).

Odds & Probability

House edge with basic strategy
~0.5%
Probability of being dealt blackjack
~4.8%
Standard blackjack payout
3:2

Blackjack has one of the lowest house edges in the casino — but only if you play a 3:2 variant with basic strategy.

FAQ

+Does card counting work online?

Not in RNG blackjack, since the deck is reshuffled after every hand. In live-dealer games with a shoe it's theoretically possible but practically unprofitable due to deep cuts and fast play.

+What's the difference between RNG and live blackjack?

RNG uses an audited random number generator and is instantly playable. Live blackjack is streamed from a studio with a real dealer.

+Which variant is mathematically best?

Classic single-deck or European blackjack with S17 and 3:2 payout — when available.

Blackjack variants

Online casinos offer many blackjack variants with significantly different house edges. The most important: