Thunderous Reign
ABOUT THE GAME
Welcome to the slot game, Thunderous Reign. It has 5 reels in a 3x4x3x4x3 row matrix. This game has:
Hold & Respin Feature
Free Spins Feature
BOOM+ (ante bet)
The average theoretical return to player (RTP) is:
Regular Game: 93.81%
BOOM+: 94.16%
RULES
WILD
WILD substitutes for all symbols when Boom+ is activated.
SCATTER BONUS
3 SCATTER BONUS symbols trigger free spin feature when Boom+ is activated.
SCATTER COIN
6 or more SCATTER COIN symbols trigger Hold & Respin Feature.
COLLECT
Each COLLECT that appears wins all SCATTER COIN prizes instantly.
HOLD & RESPIN FEATURE
6 or more SCATTER COIN symbols trigger Hold & Respin Feature.
3 respins are awarded.
All triggering SCATTER COIN symbols are held and other positions spun.
Respins reset to 3 if more SCATTER COIN, WILD, or COLLECT symbols appear.
During Hold & Respin all SCATTER COIN and WILD symbols are held and other positions spun.
SCATTER COIN prizes can be 1x, 2x, 3x, 4x, 5x, 6x, 7x, 8x, 25x, 50x, or 100x the total bet.
All prizes are immediately awarded and not held if the COLLECT symbol appears during Hold & Respin.
Major prize awards 100x of total bet.
Minor prize awards 50x of total bet.
Mini prize awards 25x of total bet.
During Hold & Respin only SCATTER COIN, COLLECT and WILD symbols are in play.
WILD symbol may appear in a single position during the Hold & Respin feature.
COLLECT symbol may appear in a single position during the Hold & Respin feature.
Hold & Respin feature is played at the triggering bet.
FREE SPINS FEATURE
3 or more SCATTER BONUS symbols trigger 10 FREE SPINS.
Free Spins feature can also be triggered randomly on any base game spin under the following conditions:
Hold & Respin feature is not triggered.
Free Spins feature is not triggered from SCATTER BONUS symbols.
Boom+ is enabled.
Wild Multi starts at 2x.
Wild Multi does not reset during Free Spins.
During Free Spins, each SCATTER BONUS and/or WILD symbol which appears increases Wild Multi by 1x.
During Free Spins, each SCATTER BONUS and/or WILD symbol which appears awards 1 Extra Free Spin.
Hold & Respin feature can be triggered during Free Spins.
Free Spins feature cannot be retriggered.
At conclusion of Free Spins feature, the Wild Multiplier is restored to 2x.
BOOM+
When BOOM+ is activated, 3 or more SCATTER BONUS symbols trigger 10 FREE SPINS.
When BOOM+ is activated, WILD substitutes for all symbols.
If more than one WILD or COLLECT appear simultaneously on the same spin, each COIN prize is only collected once.
GAME RULES
Player selects a total bet to play 432 ways.
Payouts are made according to the paytable.
SCATTER wins are added to ways wins.
Coinciding wins are added.
Highest win paid per winning combination.
Each symbol in a win can be used once per winning combination.
All wins begin with the leftmost reel, and pay left to right on consecutive reels, except SCATTER BONUS which pays any.
WILD substitutes for all symbols except COLLECT.
When Boom+ is activated, WILD substitutes for all symbols.
Each WILD in a win multiplies the prize by the Wild Multiplier.
During base game, the Wild Multi is 2x.
During base game and Free Spins, WILD appears on reels 2 and 4 only.
During base game and Free Spins, COLLECT appears on reel 3 only.
Malfunction voids all pays and plays.
HOW TO PLAY
Pick your bet amount and push spin button.
Spin Button
Places a bet then spins the reels.
Boom+ Button
Toggles the BOOM+ Ante Bet.
Bet Buttons
Adjusts the BET staked.
(+) button raises your BET, (-) button lowers your BET.
Menu Button
View the MENU, showing buttons (if available) such as BET, AUTOPLAY, SOUND, HOME, CASHOUT, HISTORY, and HELP.
Not all buttons are available in all environments.
Sound Buttons
Turn sounds On or Off respectively.
Info Button
Display info pages.
Autoplay Button (Optional, only applicable in some jurisdictions)
Opens Autoplay configuration window, where the player can select the desired number of autoplay and start autoplay.
Bet Settings Button
Opens Bet configuration window, where player can select the desired bet amount.
Return to Game Button
Go back to base game.
Stop Autoplay Button (Optional, only applicable in some jurisdictions)
Stops autoplay. Number of autoplays remaining will be shown over the button.
Balance Meter
Display the player's current balance.
Total Bet Meter
Display the total wager staked.
Win Meter
Display the current win amount.
Fast Forward Button
Fast Forward speeds up in-game animations.
Fast Forward can be turned on or off at any time.
Activating Fast Forward does not influence the result of spins.
If supported in your jurisdiction, Fast Forward speeds up each spin.
KEYBOARD SHORTCUTS
Space bar: Pressing the Space bar will initiate Spin.
AUTOPLAY (Optional, only applicable in some jurisdictions)
Allows automatic consecutive normal game plays for a certain amount of spins.
This is game rules version 1, dated March 20, 2026.
Last modification date: 11/2/2026