Machines with a multiplier for opening chests

1. Introduction

The "chest opening multiplier" mechanic turns standard bonus rounds into a chain of gambling decisions: each found chest multiplies the bet by a given factor or adds to the current factor. Players are actively looking for such machines to accelerate the growth of winnings and experience every click.

2. Principle of operation

1. Bonus activation: Three to five scatter symbols in the form of chests or cards trigger a bonus round.

2. Opening chests: A screen with several chests (usually 5-12) appears in front of the player.

3. Multipliers: for each open chest, a multiplier is charged (× 1- × 10), which is summed or multiplied by the previous one.

4. The number of choices: fixed (for example, 3 clicks) or dynamic (each chest gives + 1 choice to the maximum).

5. Total - The total multiplier is applied to the main bet or total win of the bonus round.

3. Multiplier implementations

Linear multiplication: the sum of all factors (× 2 + × 3 + × 5 = × 10 to the bet).

Combined multiplication: Each new chest multiplies the current coefficient (1 × 2 = 2, 2 × 3 = 6, 6 × 5 = 30).

Fixed base + multiplier: basic freespin guarantee, then each chest adds × n to the basic payout.

Progressive factors: a certain chest in a random place gives a progressive factor (× 10- × 100) once a cycle.

4. Mathematics and parameters

RTP bonus round: usually 10-20% of total RTP; for the multiplication function, lay 2-5% in a separate pool.

Average multiplier: in classical implementations 5-15 × rates; in innovative - up to 30 ×.

Chests fall out frequency: optimal 1: 80-1: 120 spins to limit aggressive multiplier growth.

Volatility: Highly volatile mechanics are rare but powerful bonuses.

5. Examples of automata

6. Design and UX

Chest Icon: Stylized wooden chest with metal hoops, shines when pointed or pressed.

Opening animation: The lid swings open slowly, the inner glow accompanied by the ringing of coins.

Indication of multipliers: large digital indicator next to the chest or on top of the screen, backlight "+ × n."

Sound effects: deaf creak of wood, ringing of coins, fanfare with a rare progressive chest.

7. Psychology and retention

Hoarding effect: Each chest brings a partial reward and the promise of more in the next step.

Illusion of strategy: The player feels that the choice of chests affects the outcome, although the order is random.

Variable reinforcement: frequent small factors and rare large progressives stimulate to return for new discoveries.

8. Strategies for players

1. Bet size management: Small bets allow you to save multipliers longer and reach a maximum.

2. Demo mode test: evaluate the distribution of multipliers and the average final coefficient for 50-100 bonus rounds.

3. Provider score: Check the integrity and transparency of the mechanics through access to rules and probabilities on the provider's website.

9. Recommendations to developers

Balance of elections and generosity: optimally 5-7 chests and an average multiplier of 10-15 × so that the retention does not fall.

Progressive elements: Enter a rare progressive chest to add a jackpot drive.

Transparency: specify the rules for calculating the factors and the probability of falling out of special chests.

10. Conclusion

Slots with a multiplier for opening chests combine the quest element and classic bonus rounds, offering players active participation and powerful "shots" to the final treasure. Clear indication, balanced mathematics and emotional animations turn each discovery into a small adventure, ensuring a high level of retention and audience satisfaction.