Payouts
- Only the highest winner will be paid per winning combination. Line pays must occur on adjacent reels, beginning with the far left reel.
- Payouts reflect the current bet configuration.
- Wins that occur on all played lines are added to the total win. All awards shown are per symbol, per winning line.
Wild Symbol
- The WILD symbol can appear on any reel and substitutes for all symbols except the BONUS and TREASURE symbols.
Bonus Symbol
- The BONUS symbol can appear on any reel.
- The BONUS symbol only appears in the base game.
- The BONUS symbol is a scatter symbol.
| Bonus Symbol |
|---|
| 3 BONUS – 6 FREE SPINS. |
| 4 BONUS – 8 FREE SPINS. |
| 5 BONUS – 10 FREE SPINS. |
Treasure
- TREASURE symbols can land on any reel. These TREASURE symbols appear as a Bronze Bag, a Silver Pot or a Gold Chest.
- TREASURE symbols can land with the following values:
| Bronze Bag |
|---|
| £10.00, £15.00, £25.00 |
| Silver Pot |
|---|
| £50.00, £75.00, £100.00 |
| Gold Chest |
|---|
| £125.00, £250.00 |
- TREASURE symbol awards are displayed as cash values.
Harpoon Awards
- On any spin in the base game, the harpoon gun on the ship behind the reels can be fired to award up to 7 TREASURE symbols on the reel array.
Free Spins
- In the FREE SPINS, WILD symbols become WALKING WILDS symbols. Once a WALKING WILDS symbol lands on a reel, that reel will have its multiplier increased by 1.
- Reel multipliers do not affect how symbol pays are calculated. Only TREASURE symbols are affected.
- Once a WALKING WILDS symbol is on the reels, respins will begin, locking the FREE SPINS counter until the end of the respins. The respins are over when there are no more WALKING WILDS symbols on the reel array.
- When respins are completed, all reel multipliers are reset to 1.
- On each spin of the respins, a wave will move each WALKING WILDS symbol over to the left by one reel, until it is off of the reel array. Only one WALKING WILDS symbol can land on the reel array per spin.
- A lock will appear on the FREE SPINS meter to indicate that respins are in progress.
- While respins are active, the FREE SPINS counter is locked and will not increase. Additional FREE SPINS can be added to the total number of FREE SPINS via TREASURE symbols.
Free Spins Treasure
- In the FREE SPINS, TREASURE symbols can grant their award values, or additional FREE SPINS. FREE SPIN values always start as +1 FREE SPINS.
- If any TREASURE symbol is in a position adjacent or diagonally adjacent to a WALKING WILDS symbol, its award value or FREE SPINS value will be collected and added to the total win or FREE SPINS respectively.
- If a TREASURE symbol is adjacent or diagonally adjacent to multiple WALKING WILDS symbols, it will be collected by all adjacent and diagonally adjacent WALKING WILDS symbols.
- Any TREASURE symbol that lands on a reel with a multiplier value, will be multiplied by that value. This includes FREE SPIN awards.
Win Lines
- All games are played with 10 win lines. Wins can occur across any of the win lines.
Turbo Mode
- Turn on Turbo Mode to speed up each spin, it can be turned off at any point during the game.
- When FREE SPINS are awarded, Turbo Mode will automatically be turned off.
- Activating Turbo Mode does not influence the results of the spins.
Legal Notices
- The RTP is shown in-game. This reflects the theoretical return across many plays.
- In accordance with fair gaming practices, the outcome of each and every game is completely independent.
- The chances of getting a particular outcome are always the same at the start of every game.
- Disclaimer: Some features and settings may not be available in your jurisdiction.
- Malfunction voids all pays and plays.
- The look and feel of the game and its individual components and displays are trade dress of Light & Wonder, Inc. and its Subsidiaries. TM and © 2025 Light & Wonder, Inc. and its Subsidiaries. All rights reserved.
Harpoon Heist Free Play Explained
A Harpoon Heist free play or demo mode is often used by players to learn how a slot works before wagering. Since this option isn’t available on our site, we provide the essential information straight from the game instead. By reviewing these details, you’ll understand how Harpoon Heist operates without needing to access a demo. This page gives you a straightforward breakdown of its main features as an alternative to free play.
