4 of a King

4 of a King by Endorphina is a 5-reel, 3-row slot with 10 adjustable paylines, where wins form by landing three or more matching symbols on active lines from left to right. Symbols include face-down colored cards (blue, green, yellow, red) that reveal Kings on wins, alongside high-paying roulette and female dealers, and a Wild casino chip that substitutes for others and expands to cover adjacent positions, potentially up to three reels, to complete combinations. The interface integrates controls at the bottom for bet amount, payline selection, coin value, manual spin, and autoplay. Visual style evokes vintage casino aesthetics with straightforward graphics, beautiful detailing, and simple animations like card flips and Wild expansions. A post-win Gamble feature offers a card-guessing mini-game against the dealer to double winnings by picking a higher-value card from five face-down options. Lacking free spins or scatters, the game emphasizes core mechanics with RNG fairness and Provably Fair verification. Its medium volatility balances win frequency and size, supporting bets from $0.01 to $100, while the 96% RTP and 3697x max win potential reward patient play.