ZapLab

Rules of the game

ZapLab is a 7-row, 7-reel slot with tumbling symbols and cluster wins.

A winning cluster consists of 5 or more identical symbols connected vertically or horizontally. Only the largest group of identical connected symbols pays.

A game round starts at the selected bet level when the player presses the Spin button.

If Auto Spin is enabled, you can play automatically. Press and hold the Spin button or use the Auto Spin button to set the number of game rounds to be played automatically.

If Auto Spin is enabled, you can play automatically. Press and hold the Spin button or use the Auto Spin button to set the bet level, loss limit, and the number of game rounds to be played automatically.

Winnings and winning combinations are paid according to the paytable.

Winnings are displayed in the player's currency or coins. Players can change their preferences in the settings.

Winnings are displayed in the player's currency.

All group wins from the current symbol drop are collected. All symbols that were part of a winning combination are then removed, except for Zappy and the Feature symbols. All other symbols, except for Zappy, Dr. Mayhem, and the Feature symbols, move vertically to a resting position, and new symbols fall from above to fill the gaps. The Avalanche feature continues as long as new symbols continue to appear.

winning combinations.

Paying symbols that are part of the winning cluster are collected and the Monster Meter increases. Each exploding symbol position increases the Monster Meter by one step. The Monster Meter fills up after a total of 25 steps are achieved, except in X-iter Shockwave Hunt mode, where 20 steps are required, and during Shockwaves, where 150 steps are required. A full Monster Meter awards a randomly chosen Feature symbol or a randomly chosen Monster Feature. Possible Feature symbols are: Omniblast, Electroshift, and Twilight Twirl. Possible Monster Features are: Monster Reload, Wild Flip, Monster Chunks, Monstrous, and Zapocalypse. Filling the Monster Meter a fifth time triggers Shockwaves.

Features that would be awarded by filling the Monster Meter remain pending until there are no more wins. Before the next feature is triggered, the pending feature is activated, and the full game round is played until there are no more wins.

The flashing colors of the Monster Meter indicate which function will be assigned when the meter fills. Pending functions are indicated by a static colored light. The color legend is as follows:

• Orange: Function symbol
• Turquoise: Monster Reload
• Blue: Wild Flip
• Green: Monster Chunks
• Violet: Monstrous
• Rosa: Zapocalypse

The Monster Reload feature triggers a new symbol drop at the end of the game round when there are no more wins. Any Zappy symbols remain during the redrop.

The Wild Flip feature is triggered at the end of the game round when there are no more wins. It selects a paying symbol type at random from the symbol board and substitutes for all units of that type.

by Wild symbols.

The Monster Chunks feature is triggered at the end of the game round when there are no more wins. It randomly selects a number of paying symbols or Wild symbols from the symbol board and replaces them with 2x2 symbols.

The Monsters feature is triggered at the end of the game round when there are no more wins. It randomly selects a paying symbol or a Wild symbol on the symbol board and increases its size to 3x3, 4x4, or 5x5.

The Zappy Pocalypse feature is triggered at the end of the game round when there are no more wins. A random number of Dr. Mayhem symbols land, replacing existing symbols and triggering Zappy's attack.

Shockwaves are triggered when the Monster Meter fills five times. They award all Monster Features, but they are triggered and played one at a time. Before the next Monster Feature is triggered, the full game round is played until there are no more wins. Monster Features are triggered in the following order:

• Monster Reload
• Wild Flip
• Monster Chunks
• Monstrous
• Zapocalypse

The cycle repeats if the Monster Meter refills during Shockwaves.

There are three Feature symbols that can land during any symbol drop or that the Monster Meter can award: Omniblast, Electroshift, and Twilight Twirl. Feature symbols are also Wild when they land on the symbol board as part of a symbol drop.

When awarded by the Monster Meter, the feature symbol is activated immediately; however, once it lands, it doesn't activate until it's part of a winning cluster. The feature is activated after the symbols refill.

The function symbols granted by the Monster Meter are placed on the symbol board after the symbol refill.

Feature symbols are activated in the following order when multiple symbols are activated in the same symbol reload:

• Omniblast
• Electroshift
• Twilight Twirl

A Wild feature symbol is only activated by the first winning cluster, in case it is part of additional winning combinations.

The Omniblast symbol turns itself and all paying symbols within an X-shaped path into a randomly chosen paying symbol. Feature symbols are triggered when hit by the Omniblast beam. Wild, Zappy, and Dr. Mayhem symbols are unaffected.

The Electroshift chooses a paying symbol at random from the symbol board and upgrades all units of that type, including the Electroshift, to a higher-value symbol.

The Twilight Twirl randomly selects a paying symbol type, transforms into that type, and removes all other paying symbols. Wild, Feature, Zappy, and Dr. Mayhem symbols are unaffected.

4 identical paying symbols or Wild symbols forming a square on the symbol board combine to create a 2x2 symbol of the same type.

Empty spaces below the large symbols are filled with 1x1 symbols of the same type as the large symbol.

The Wild symbol substitutes for any paying symbol. A winning combination consisting only of Wild symbols pays as the highest-paying symbol.

Zappy is a Wild symbol that can land during any symbol drop. When it is part of a winning cluster, it jumps to a new

randomly chosen position. Zappy leaves behind a Wild symbol and immediately attacks all Dr. Mayhem symbols, removing them from the symbol board before win evaluation. Zappy's multiplier increases with each attack.

Before the profit evaluation, Zappy may increase in size to 2x2, 3x3, or 4x4 during his last attack.

Dr. Mayhem is a blocking symbol that can fall during any symbol drop. The Monster Meter increases when the Dr. Mayhem symbol is attacked and knocked off the symbol board by Zappy.

Bets cannot be changed during a current round of play.

A game round ends immediately when the win limit is reached; any accumulated winnings will then be paid out.

The theoretical payout (RTP) at ZapLab is 94.0%.

The maximum total win in a game round is limited to 10,000 times the bet placed.

If a malfunction occurs, all bets and prizes are void.

X- iter rules 

The X-iter feature offers several different game modes.

Maxed Monster: A 5x5 Monstrous drop with the Monster Meter only awards Monstrous features and Monster Chunks until Shockwaves are activated, costing 500 times the selected bet.

Shockwaves: Guarantees a game round in which Shockwaves are activated, at a cost of 100 times the selected bet.

Amplifier: A drop with a pending Monster Meter feature and the Monster Meter only awards Monster features, costing 25 times the selected bet.

Zappy's Territory: A guaranteed Zappy drop, costing 5 times your selected bet.

Shockwave Hunt: A drop with more than three times the chance of triggering Shockwaves, costing 3 times the selected bet.

X-iter features can only be activated in the base game.

The theoretical payout (RTP) of all X-iter game modes at ZapLab is 94.0%.

All the rules of the game also apply to X-iter functions.

Last modification date: 4/24/2025