Lock and Key

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Rules and Gameplay

The Lock and Key slot game, developed by Slot Factory, features a classic 5×3 layout with 15 fixed paylines, making it an engaging choice for both new and seasoned players. Gameplay is accessible and mobile-friendly, allowing players to enjoy the game on any device. It operates with a transparent Spin button located on the left side of the screen along with various technical settings. The game includes an infinite Autoplay option for seamless play, although it lacks Quickspin features. Despite this, the gameplay dynamics are well-balanced and entertaining.

Bonus Features

Lock and Key comes packed with enticing bonus features that enhance the gaming experience and potential winnings:

  • Sticky Respins: Activates randomly after a non-winning spin in the base game. If wilds are visible, they lock in place while other symbols respin, increasing chances of scoring.
  • Free Spins: Triggered by landing three, four, or five scatter symbols anywhere on the reels, awarding 5, 10, or 15 free spins, respectively. During these rounds, the lowest-paying symbols are removed, and each non-winning spin triggers a partial grid respin with all features active.
  • Wilds with Multipliers: The appearance of a special Key symbol on locked wilds adds an x2 multiplier, boosting the potential for significant wins.


The game’s symbols contribute to its thrilling theme and winning possibilities:

  • Wild Symbol: Substitutes for all other symbols except scatters, playing a crucial role in forming winning combinations.
  • Scatter Symbol: Triggers the Free Spins feature, offering players additional chances to win without placing extra bets.
  • Lower-valued symbols include 10s and 9s, which are removed from the reels during the Free Spins feature for increased winning potential.


The Lock and Key slot offers a diverse range of payouts with symbols rewarding players in various ways:

Symbol 3x 4x 5x
Wild 50x 100x 150x
Slot Logo 45x Up to 125x N/A
Dollar Signs, Gold Bullions Varies Up to 110x N/A

This table represents only a portion of the game’s payout structure, highlighting the potential for high rewards across various symbols.


Lock and Key features 15 fixed paylines, providing players with multiple opportunities to win on each spin. All wins are calculated from left to right, starting from the leftmost reel, and require combinations of 3, 4, or 5 matching symbols to secure a payout. This setup ensures a straightforward yet dynamic gaming experience, suitable for players of all levels.

Pros & Cons

Pros Cons
Mobile-friendly design ensures compatibility with various devices. Lack of Quickspin feature may deter some players.
Features like Sticky Respins and Free Spins with guaranteed wins enhance gameplay. Low-RTP variants can be riskier, making it less appealing to cautious players.
Wide betting range accommodates both low and high rollers. Free Spins feature cannot be purchased or won in an alternative way.

Minimum and Maximum Bet

The betting range in Lock and Key is designed to cater to a wide audience, with minimum bets starting as low as $0.15 and maximum bets reaching up to $300 per spin. This broad range allows players of different budgets to enjoy the game, whether they prefer to play it safe with lower stakes or aim for higher rewards with larger bets.

About Provider

Slot Factory, the developer behind Lock and Key is renowned for its high-quality and innovative slot games. Being a part of the Skywind Group, Slot Factory has a reputation for delivering engaging gameplay and visually appealing designs. Their portfolio includes a variety of slots that appeal to different interests and gameplay styles, ensuring that there’s something for everyone. The company’s commitment to mobile-friendly designs means that players can enjoy their favorite slots anytime, anywhere, without compromising on quality.

How To Play

  • Start by setting your bet amount, with options ranging from $0.15 to $300 per spin.
  • Use the Spin button on the left side of the screen to start the game. For uninterrupted gameplay, you can also activate the infinite Autoplay feature.
  • Winning combinations are formed by lining up 3, 4, or 5 matching symbols on any of the 15 fixed paylines, starting from the leftmost reel.
  • Keep an eye out for special symbols like Wilds and Scatters. Wilds can substitute for other symbols to form winning combinations, while Scatters trigger the Free Spins feature.
  • Take advantage of the bonus features, such as Sticky Respins and Free Spins, to maximize your winning potential.


Lock and Key is a well-designed slot game that combines simple gameplay with exciting bonus features, making it appealing to a broad range of players. The mobile-friendly design ensures that the game can be enjoyed on any device, while the wide betting range makes it accessible to players with varying budgets. Although it lacks certain features like Quickspin, the inclusion of Sticky Respins, Free Spins with guaranteed wins, and wilds with multipliers provides plenty of opportunities for rewarding gameplay. Overall, Slot Factory has delivered another engaging slot that promises fun and potential for substantial payouts.