About the Game
BOOK OF ABYSS is a 5-reel, 3-row video slot from Just Slots that features a special expanding symbol with multipliers and a free spins feature.
Payouts are made from left to right, starting from the leftmost reel, on specific paylines. Only the highest win on each payline is paid. Wins on multiple paylines are combined.
Buy Bonus
The Free Spins feature can be purchased instantly.
There are three options:
- Purchase the Free Spins feature for 100x the base bet and you will receive 3 WILD symbols.
- The theoretical return to player (RTP) for purchasing the bonus with 3 WILD symbols is 96.41%.
- The theoretical return to player (RTP) for purchasing the bonus with 3 WILD symbols and the GAMBLE feature is 96.41%.
- Purchase the Free Spins feature for 300x the base bet and you will receive 4 WILD symbols.
- The theoretical return to player (RTP) for purchasing the bonus with 4 WILD symbols is 96.41%.
- The theoretical return to player (RTP) for purchasing the bonus with 4 WILD symbols and the GAMBLE feature is 96.41%.
- Purchase the Free Spins feature for 1250x your base bet and land 5 WILD symbols.
- The theoretical return to player (RTP) for purchasing the bonus with 5 WILD symbols is 96.42%.
- The theoretical return to player (RTP) for purchasing the bonus with 5 WILD symbols and the GAMBLE feature is 96.42%.
Hotspin
You can increase your chances of triggering the Free Spins feature by adding an additional bet to your base bet. The additional bet is worth 300% of your base bet. When the HOTSPIN feature is activated, more WILD symbols appear on the reels. Selecting “Buy Bonus” deactivates the HOTSPIN feature. Payouts are calculated based on the base bet. The theoretical RTP (return to player) for the HOTSPIN feature is 96.46%.
RTP
- The theoretical return to player (RTP) for this game is 96.34%.
- The theoretical return to player (RTP) for the GAMBLE FEATURE game is 96.34%.
Max Win
The maximum win in Book of Abyss is capped at 150,000 times the base bet. If the total win for a round reaches this amount, the round ends.
Game Rules
The WILD symbol substitutes for all symbols except the Expanding symbol.
Free Spins
Landing 3, 4, or 5 WILD symbols anywhere on the reels awards 10 free spins. Before the free spins feature begins, one expanding symbol and a multiplier are selected. Possible multiplier values are: 1x, 2x, 3x, 5x, 6x, 8x, 10x, 20x, 30x, 40x, 50x, 75x, and 100x. The number of WILD symbols that trigger the free spins feature determines the starting expanding symbol and multiplier.
- 3 WILD symbols select any expanding symbol and a random multiplier.
- 4 WILD symbols select any expanding symbol and set the starting multiplier to 2x or higher.
- 5 WILD symbols select any expanding symbol and set the starting multiplier to 10x or higher.
Free Spins Gamble
Before the Free Spins feature begins, you can bet on the special expanding symbol and the multiplier, either individually or together.
Three gamble wheels are available:
- 1 for the special expanding symbol.
- 1 for the starting multiplier.
- 1 for the maximum win for both the special expanding symbol and the maximum starting multiplier.
Only one wheel can be used at a time, but multiple bets can be placed until the maximum special expanding symbol and multiplier are hit. Once the maximum special expanding symbol or multiplier is hit, the corresponding wheel becomes unavailable. When the maximum special expanding symbol and multiplier are hit, the Free Spins feature is automatically triggered. A special expanding symbol and multiplier can be hit at any time before the bet is placed, triggering the Free Spins feature. If the maximum special expanding symbol and multiplier are hit at the start of the game, the betting feature is skipped. Any unsuccessful bet results in a return to the main game.
Additional Free Spins And Multipliers
During Free Spins, landing 2, 3, 4, or 5 WILD symbols anywhere on the reels awards 3, 10, 15, or 20 additional Free Spins, respectively.
Before awarding additional Free Spins, a multiplier is selected and added to the current multiplier. Possible multiplier values are: 2x, 3x, 5x, 6x, 8x, 10x, 20x, 30x, 40x, 50x, 75x, and 100x.
Special Expanding Symbol
The symbol expands when it forms a winning combination. Paylines are evaluated first. Expanding symbols do not need to be adjacent to win and pay out on all 10 paylines. Payouts for expanding symbols are multiplied by the selected multiplier. Free Spins mode uses different reels.
Pros & Cons
Pros
- Buy Free Spins
- Extremally high evaluated – 7.2
- Design is fine
- Max Win – x150000.00
- The slot was commended for his quality
- €/$0.10 per spin is a starting bet in the Book of Abyss
- Basic standard of RTP
