Happy Prison Slot Review

About the Game

• Free Spins. 3 or more Scatter symbols activate 10 or more free spins with unlimited retriggers.
• Super Scatter. Removes one lower-ranking symbol from the reels during free spins. 4 Super Scatters enhance the bonus game.
• Bonus Purchase. Instantly activates free spins for an additional fee. Click the button, select your bet amount, and launch the selected bonus.
• Payout methods. 3 or more identical regular symbols on 3 or more adjacent reels in any position form a winning combination from left to right.

Happy Prison is a 6-reel video slot from TrueLab Games with 4096 paylines from left to right.

• Number of regular symbols: 11
• Wild symbols: 1
• Scatter symbols: 2

Buy Bonus Feature

Players can use the Buy Bonus feature to instantly receive free spins or use the Bonus Bet feature for an additional fee.

To immediately activate the Buy Bonus or Bonus Bet features, click the Buy Bonus button. A menu will appear for selecting a bonus and bet amount. Click the Start button to launch the selected bonus.

Activating the Buy Bonus feature opens the bonus game with free spins, at least three random Scatter symbols worth x100 of the current bet, including the option to re-trigger additional spins.

Activating the Super Bonus feature guarantees the landing of at least three Scatter symbols, including one guaranteed Super Scatter, to trigger the free spins bonus game. This activation costs 200x the current bet.

Activating the Total Frenzy feature guarantees the landing of three Super Scatter symbols on the reels, triggering the free spins bonus game. This activation costs 500x the current bet.

Activating the Bonus Bet feature is only available in the base game and doubles the chance of landing a Scatter symbol at an increased cost of 30% of the current bet for each spin until deactivated.

The Bonus Bet feature does not affect the bet amount in the bonus game.

RTP

• The overall theoretical return to player (RTP) is 96.07%.
• The overall theoretical RTP for the Buy Bonus is 96.15%.
• The overall theoretical RTP for the Super Bonus is 95.86%.
• The overall theoretical RTP for Total Frenzy is 96.05%.
• The overall theoretical RTP for the Bonus Bet is 96.19%.

The maximum win in a single round is 10,000 times the bet. The maximum win is 10,000 times the bet.

Game Rules

Free Spins

The player receives 10 or more free spins if 3 or more Scatter symbols appear anywhere on the reels during a single spin in the main game. 3, 4, 5, or 6 Scatter symbols trigger 10, 12, 14, or 16 free spins in the main game, respectively. Free spins can be retriggered during the bonus game. In the bonus game, 1 Scatter symbol awards the player with an additional free spin. There is no limit to the number of free spins that can be retriggered during the bonus game. Free spins are played with the same bet as the round that triggered them.

Super Scatter

Four Super Scatters enhance the bonus game, increasing the winning potential by removing four lower-ranked symbols from the reels. Each Super Scatter symbol removes one lower-ranked symbol during free spins until the end of the bonus game. In all other cases, the Super Scatter symbol acts as a regular Scatter.

Wild Multipliers

Multipliers are activated only during free spins. Wild multipliers can only appear on reels 2–6. If a Wild multiplier appears on the same payline as a winning combination, it is applied to the win. The multiplier value is randomly selected from the following range: x2, x3.

Wild multipliers are multiplicative. Multipliers appearing on the same payline as a winning combination are multiplied and applied to the win at the end of each free spin (x2 and x3 = x6). Multipliers are not carried over between spins.

Winning Paths

Wins are awarded for 3 or more identical symbols on 3 or more adjacent reels from left to right. Symbols can appear in any position on each reel to form a winning combination. Multiple identical symbols on a single reel multiply the winnings. Multiple wins on different paths are summed up. Only paths of 5 symbols can consist entirely of Wild symbols.

How to calculate winnings

Winnings in the game are determined by paths. The maximum number of paths in the game is 4096. Wins consist of 3 or more identical symbols and are awarded for combinations of adjacent symbols from left to right. Win values ​​are shown in the paytable and depend on the bet on the winning combination.

To calculate a single win, count the number of matching symbols in a winning combination and consult the paytable. To calculate a total win, calculate all wins and add them together. Scatter symbols can appear anywhere on the reel to create a win. Wins with a multiplier are calculated in two stages: The Wild symbol is added to the total number of symbols on the reel, increasing the number of potential winning combinations. The Wild multiplier value is applied to the final win amount after all winning combinations are calculated.

Pros & Cons