Online Blackjack Rule Variations by Online-Casinos.com

Variations in the blackjack rules can be found in vegas as well as at online casinos. Rule changes will affect the expected payout and which basic blackjack strategy chart to use.

Online Blackjack Rule Variations

Microgaming Blackjack:

European Blackjack Rules:

Two decks
Dealer stands on soft 17
Double on 9 to 11 only
No doubling after splitting
No resplitting
Player may draw to split aces
No surrender
Full no peek (player loses total amount bet against dealer blackjack)
Insurance not resolved until end of hand
One bet position

Multi-Hand Blackjack Rules:

5 decks
Dealer stands on soft 17
Double on 9 to 11 only
No doubling after splitting
No resplitting
Player may draw to split aces
No surrender
Full no peek (player loses total amount bet against dealer blackjack)
Insurance not resolved until end of hand
Five bet positions

Vegas Strip Blackjack Rules:

4 decks
Dealer stands on soft 17
Double on any first two cards
Double after split allowed
Resplit to three hands
Dealer peeks for blackjack
One bet position

Vegas Downtown Blackjack Rules:

2 decks
Dealer hits on soft 17
Double on any first two cards
Double after split allowed
Resplit to three hands
Dealer peeks for blackjack
One bet position

Atlantic City Blackjack Rules:

8 decks
Dealer stands on soft 17
Double on any first two cards
Double after split allowed
Resplit to three hands
Dealer peeks for blackjack
Late surrender allowed
One bet position

Cryptologic Blackjack:

Standard Blackjack Rules

(Same as Atlantic City Blackjack, except player is allowed to split again after a split)

8 decks
Dealer stands on soft 17
Player may double on any first two cards
Player may double after splitting
Player may split only once
No surrender
Dealer checks hole card for blackjack

Cryptologic Single Deck Blackjack:

1 deck
Dealer hits on soft 17
Player may double on any first two cards
Player may double after splitting
Player may split only once
No surrender
Dealer checks hole card for blackjack

Net Entertainment Blackjack:

Dealer stands on soft 17
Player may double on any first two cards
Player may double after splitting
Player may split only once
Dealer always peeks under ten and ace, exposing a blackjack before player's turn

Vegas Technology / OddsOn Blackjack Rules:

Four decks
Dealer stands on soft 17
Double on 9 to 11 only
No doubling after splitting
No resplitting
Player may not draw to split aces
No surrender
Full no peek (player loses total amount bet against dealer blackjack)
Insurance not resolved until end of hand
Betting limits: $2-$200

Random Logic Blackjack Rules:

4 decks
Dealer stands on soft 17
Player may double on any first two cards
Player may double after splitting
Player may split only once
Full U.S. hole card rule
Player may NOT draw to split aces
Blackjack after splitting tens pays 3-2

Real Time Gaming Blackjack Rules:

Configurable number of decks. Usually four but sometimes two
Dealer hits soft 17
Double on any first two cards
Double after a split
Split two times (to three hands)
Player only loses original bet if dealer has blackjack.
Late surrender is a configurable option. Usually it is not enabled but some casinos do allow it, such as Bodog Online Casino.

Boss Media Blackjack Rules:

Standard Blackjack Rules

Six decks
Dealer stands on soft 17
Player may double on any first two cards
Player may double after a split
Player may not resplit
One card to split aces
Dealer always peeks for blackjack (U.S. rule)

Boss Media Single Deck Blackjack Rules:

(NOTE: player edge of 0.11%)

1 deck
Dealer stands on soft 17
Player may double on any first two cards
Player may double after a split
Player may not resplit
One card to split aces
Dealer always peeks for blackjack (U.S. rule)

Playtech Blackjack Rules:

Standard Blackjack Rules

6 decks
Dealer stands on soft 17
Player may double on any first two cards
Player may double after splitting
Player may only split once
There is a mixture of U.S. and European rules on what happens if the dealer gets a blackjack. Here is what happens if the dealer gets a blackjack according to the situation.
- Dealer has ace up, player doubles and/or splits: entire bet lost.
- Dealer has 10 up, player splits: entire bet lost.
- Dealer has 10 up, player doubles: only original bet lost.
- Dealer has 10 up, player splits and doubles: additional bets from splitting lost but doubling returned.
No surrender
Otherwise standard rules

Playtech Single Deck Blackjack Rules:

1 deck
Dealer hits on soft 17
Player may double on 10 and 11 only
Player may not double after splitting
Player may only split once
Dealer peeks for blackjack with 10 or ace up
No surrender
Otherwise standard rules

Playtech Blackjack Surrender:

6 decks
Dealer stands on soft 17
Player may double on any first two cards
Player may double after splitting
Player may only split once
Dealer always peeks for blackjack
Late surrender available
Otherwise standard rules