House Hold'em

Game Mechanics & Rules

Players post an Ante and optionally an Aces Open side bet. Two hole cards are dealt to the player and dealer, followed by a three-card flop. After seeing the flop, the player either folds (forfeiting the Ante) or calls by placing a Call bet of exactly 2x the Ante. The dealer and player then each play the best five-card hand from their two hole cards plus the shared five-community-card board. The dealer qualifies with a pair of 4s or better.

1. Place your Ante bet and optionally the Aces Open side bet. The Aces Open pays based on your two hole cards combined with the three flop cards, regardless of the main game outcome.
2. Two hole cards are dealt face-up to you and two face-down to the dealer. A three-card flop is dealt face-up and shared between both hands.
3. Evaluate your five-card hand potential (your two hole cards plus the three flop cards) and decide: fold to forfeit your Ante, or call by placing a Call bet of 2x your Ante.
4. If you call, the turn and river community cards are dealt, completing the five-card board. Both player and dealer use all five community cards plus their respective two hole cards.
5. The dealer qualifies with a pair of 4s or better using their best five-card hand. A non-qualifying dealer pays the Ante 1:1 and pushes the Call bet.
6. With a qualifying dealer, hands are compared using standard Texas Hold'em rankings. Player wins: the Ante pays the Ante Reward ladder (pair to straight: 1:1, flush: 2:1, full house: 3:1, four of a kind: 10:1, straight flush: 20:1, royal flush: 100:1) and the Call bet pays 1:1. Millionaire Mode is a paid $1 Royal Spades side bet that runs alongside the round; it does not reduce your main House Hold'em payouts.

Optimal Strategy & Analysis

The optimal fold/call decision in House Hold'em is more complex than single-threshold games due to the flop information available. The general strategy is: always call with a made pair or better (using any combination of hole cards and flop); fold with no pair and no realistic draw to beat the dealer's likely qualifying hand. More specifically, fold only on the weakest holdings - two unsuited, unconnected hole cards below pair that do not have flush or straight draw potential against the specific flop texture. Academic analysis places the fold frequency for optimal strategy at approximately 18% of hands.

The dealer qualification threshold of pair of 4s ensures frequent qualification (approximately 82% of dealer hands qualify), meaning Call bet resolution is the norm rather than the exception. The house edge derives primarily from the 2x call requirement and the payout structure rather than qualification mechanics.

The Aces Open side bet pays based on the player's two hole cards plus the three flop cards. Standard pay tables: pair of aces 7:1, two pair (A high) 7:1 or differentiated schedules, trips 8:1, straight 10:1, flush 20:1, full house 30:1, four of a kind 40:1, straight flush 50:1, royal flush 100:1 - actual pay table visible in-game. The Aces Open house edge varies by exact pay table configuration but generally falls between 6.4% and 8.9%. It is an independent wager with no influence on the main hand.

Millionaire Mode is a paid $1 Royal Spades side bet that runs alongside the round; it does not reduce your main House Hold'em payouts. The check runs on the same dealt cards as the main hand - no separate chain, no spawn cap. The $1 stake is the entire incremental cost; main-table payouts on Ante, Call, and Aces Open are NOT modified.

Provably Fair Verification

House Hold'em hand generation uses SHA-256 Fisher-Yates applied to a 52-card deck using the standard server seed, client seed, and nonce construction. Card deal order is: player hole cards 1-2, dealer hole cards 1-2, flop cards 1-3, turn card, river card - nine cards total per hand. All nine cards are determined before any are displayed. The server seed hash is committed prior to session start; the full seed is disclosed on client seed rotation, enabling reconstruction of every hand's nine-card sequence.

The Aces Open outcome is determined by the same nine-card sequence - specifically the player's two hole cards and the three flop cards (positions 1-2 and 5-7 in the deal sequence). No additional randomness is introduced for the Aces Open. Millionaire Mode is a paid $1 Royal Spades side bet that runs alongside the round; it does not reduce your main House Hold'em payouts.

Verification of any hand requires: (1) retrieved server seed (post-rotation), (2) client seed for the session, (3) hand nonce. Apply Fisher-Yates with SHA-256 using the concatenated seed string to generate the shuffled 52-card deck. Read cards at positions 0-8 in deal order. Compare reconstructed cards against recorded hand. Community card positions 4-8 form the flop/turn/river board used by both player and dealer hands.

Millionaire Mode Technical Details

Millionaire Mode is a paid $1 Royal Spades side bet added to every round. Main-table payouts are NOT reduced. Main bets must total at least $1 USD for the side bet to attach.

Each round, the cards dealt for the side bet are checked. The Royal Spades are the six top spades - 9, 10, Jack, Queen, King and Ace of spades. Every distinct Royal Spade among the dealt cards counts as one hit; a repeated rank does not count twice and the Joker never counts.

Paytable per $1 side bet: 6 hits = $1,000,000; 5 hits = $5,000; 4 hits = $325; 3 hits = $20; 2 hits = $2; 0 or 1 hits pay nothing.

The $1,000,000 prize is pre-funded and paid in a single transaction on six hits. Lower tiers pay alongside the round settlement. The Royal Spades result is independent of the main-game outcome.