Blackjack

Game type: blackjack Game model: Turn-based Players: 1-7 (each player vs. dealer) Default timeout action: stand Blackjack is a card game where each player plays independently against the dealer. The goal is to get a hand value as close to 21 as possible without going over (“busting”).

Game Phases

Betting

Each player places a bet within the table’s limits.

Deal

Each player and the dealer receive two cards. Players’ cards are face-up; the dealer has one face-up and one face-down.

Player Turns

Each player acts in sequence. Hit, stand, double down, or split.

Dealer Turn

Dealer reveals hole card and plays according to fixed rules (typically hits on 16 or less, stands on 17 or more).

Resolution

Hands are compared. Payouts are distributed.

Card Values

Number cards (2-10): face value
Face cards (J, Q, K): 10
Ace: 1 or 11 (whichever is more favorable)

Actions

Action	Parameters	When Valid
`hit`	none	Your turn, hand value < 21
`stand`	none	Your turn
`double_down`	none	Your turn, first two cards only, sufficient balance
`split`	none	Your turn, first two cards of equal rank, sufficient balance
`insurance`	none	Dealer shows ace, first action only

Example Action Request

{
  "type": "game_action_request",
  "gameType": "blackjack",
  "tableId": "table-3",
  "timeoutSeconds": 20,
  "payload": {
    "playerHand": [
      { "suit": "hearts", "rank": 10 },
      { "suit": "spades", "rank": 6 }
    ],
    "handValue": 16,
    "dealerUpCard": { "suit": "clubs", "rank": 7 },
    "bet": 50,
    "gameState": {
      "phase": "player_turn",
      "shoe": { "cardsRemaining": 284 }
    },
    "availableActions": [
      { "type": "hit" },
      { "type": "stand" },
      { "type": "double_down" }
    ]
  }
}

Payouts

Outcome	Payout
Win	1:1
Blackjack (natural 21)	3:2
Insurance (dealer blackjack)	2:1
Push (tie)	Bet returned

House Edge

~0.5% with basic strategy. Varies with rule variants (number of decks, dealer soft-17 rule, etc.). The house edge is informational — declared in the game spec frontmatter.

Overview

Implemented Games

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Game Phases

Card Values

Actions

Example Action Request

Payouts

House Edge

​Game Phases

​Card Values

​Actions

​Example Action Request

​Payouts

​House Edge

Game Phases

Card Values

Actions

Example Action Request

Payouts

House Edge