Happy Birthday

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Rules and Gameplay

The Happy Birthday slot by Eyecon presents a straightforward yet engaging slot experience with its 5×3 layout and 25 adjustable paylines, catering to both conservative bettors and high rollers. Players can adjust their bets per payline from a minimum of $0.01 to a maximum of $0.50, enabling a total bet range per spin from $0.25 to $12.50. The game includes an autoplay feature, capable of executing up to 100 spins, facilitating an uninterrupted gaming session. This game’s structure pays from left to right, emphasizing a user-friendly interface suitable for both beginners and seasoned players.

Bonus Features

Eyecon’s Happy Birthday slot enriches the gaming experience with several appealing bonus features:

  • Free Spins: Activated by three or more scatter symbols (birthday cake), awarding 15 free spins with all wins during this round tripled. Additional free spins can be triggered within this feature.
  • Multipliers: Wins involving the wild symbol (streamers) are doubled, enhancing potential payouts significantly.


The game leverages a rich array of symbols that enhance its festive theme:

  • Scatter Symbol: Represented by the birthday cake, crucial for triggering the free spins feature.
  • Wild Symbol: The streamer acts as the wild, doubling payouts when part of a winning combination and substituting for all other symbols except the scatter.
  • Regular symbols include balloons, champagne, heart-shaped balloons, cupcakes, and gifts, each adding a colorful visual appeal to the gameplay.


The payouts in Happy Birthday are designed to reward players generously, especially with the help of multipliers and special combinations. Below is a detailed table highlighting potential winnings:

Symbol Combination Payout (times line bet)
Streamer (Wild) 5 in a row 9,500x
Birthday Cake (Scatter) 5 anywhere on reels 450x total bet
Cupcake 5 in a row 750x


With 25 adjustable paylines, Happy Birthday offers players the flexibility to select the number of lines they wish to activate per spin. This feature allows for strategic adjustments, potentially increasing the frequency of wins based on the number of lines played and the amount wagered on each line. This customization enhances the player’s control over their betting strategy and overall experience.

Pros & Cons

Pros Cons
Engaging party theme with vibrant graphics Limited bonus features compared to other slots
Generous 9500x jackpot on wild combinations Lower RTP at 95.4%, just around industry average
Triple multiplier during free spins Gameplay might be too simple for advanced players

Minimum and Maximum Bet

The Happy Birthday slot game offers a flexible betting range to accommodate various types of players. The minimum bet per line is $0.01, allowing for a total minimum bet of $0.25 per spin when all 25 paylines are active. Conversely, the maximum bet per line is $0.50, culminating in a maximum total bet of $12.50 per spin. This range makes it accessible for both low-budget players and those willing to risk higher amounts for greater returns.

Game Jackpot

The game features a significant jackpot of up to 9500 times the line bet when players land five wild symbols (streamers) in a row. Alongside this jackpot, the game operates with a Return to Player (RTP) of 95.4% and exhibits a medium variance. This balance of RTP and variance suggests that players can expect moderate swings in their game balance, with fair chances to hit large wins through the game’s jackpot and multiplier features.

About Provider

Eyecon, the developer behind Happy Birthday, is well-known in the gaming industry for creating visually appealing and engaging slot games. Established in 1997, Eyecon has a long history of delivering high-quality gaming experiences, particularly famous for their attention to detail and innovative gameplay features. Their games are consistently recognized for their colorful themes and user-friendly interfaces, making them a popular choice among both casual and seasoned online slot players.

How To Play

  • Setting Bets: Adjust the bet size by setting the coin value per line. You can select anywhere from $0.01 to $0.50 per payline.
  • Paylines: Decide on the number of paylines you wish to activate, up to a maximum of 25. More active paylines increase your chances of winning but also raise the total bet amount.
  • Spin: Once bets are set, click the spin button to start the game. Winning combinations will be paid according to the paytable.
  • Autoplay: Use the autoplay feature to set a number of automatic spins if you prefer not to spin manually. You can choose from 5 to 100 spins.
  • Check for Special Features: Keep an eye on the birthday cake symbols for free spins and streamers for wilds. These features can significantly increase your winnings.


Happy Birthday by Eyecon offers an enjoyable gaming experience with its festive theme and colorful graphics. The game’s structure is straightforward yet rewarding, with features like free spins and wild multipliers that enhance the potential for big wins. Although it may not boast a plethora of features like more modern slots, its simplicity and the excitement of potential high payouts make it a worthy addition to any slot lover’s repertoire. Ideal for players looking for casual fun with a decent payout potential, Happy Birthday captures the essence of celebratory moments every spin.