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Game Rules

• All symbols pay from left to right on adjacent reels starting from the leftmost reel.
• The highest win per line is paid per line.
• Wins on multiple paylines are added to the total win.
• All wins are multiplied by the bet per line.
• Respin wins are added to the payline win and are awarded after the round completes.
• Respin total win contains the entire win for the cycle.

Symbols and Payouts

The payouts adjust according to the current bet configuration.

High-Value Symbols:

• Five, four, or three matching shield, axe, horned helmet, or drinking horn symbols award £1.40, £0.48, or £0.16.

Card Symbols:

• Five, four, or three matching A, K, Q, or J symbols award £0.80, £0.28, or £0.12.

Wild Symbol:

• Wild (Hammer symbol) substitutes for all symbols except RED, GREEN, PURPLE, SILVER, GOLD LIGHTNING, and GOLD COIN, and THOR symbols.
• The wild symbol can appear on all reels.
• Five wilds: £4.00, four wilds: £4.00, three wilds: £1.60.

Lightning and Thor Symbols

• Three types of lightning symbols (RED, GREEN, PURPLE) can appear during base game spins.
• Collected lightning symbols can trigger DOUBLE, EXPAND, or SPINS modifiers randomly, which may activate the RESPINS feature.
• In the base game, lightning symbols function as MONEY symbols with random values: 0.5x–10,000x the total bet.
• The Thor symbol can only appear on reel 1.
• If the Thor symbol appears on reel 1 and at least one lightning symbol appears on other reels, the RESPINS round is triggered automatically.

Respins Feature

• The RESPINS round starts with 5 respins and is played on a 5×5 grid.
• Only COIN or LIGHTNING MONEY symbols and blanks can appear.
• At the start of the round, a zone appears marked on the grid, starting at 2×2 positions.
• Lightning and coin money symbols hitting in the marked zone are collected, awarding their displayed values.
• After every respin, the marked zone moves randomly.
• The values of all collected MONEY symbols are added and the respin count resets according to the collected amounts.
• Additional respins and zone expansions are awarded by collecting certain numbers of lightning money symbols.
• Respins end when there are no respins left.

Silver, Gold, and Gold Lightning Money Symbols

• These symbols only appear during the RESPINS feature and have fixed values ranging 0.5x–10,000x total bet.
• Gold money symbols can only appear when the DOUBLE modifier is active.

Modifiers

Depending on how the round is triggered, the following modifiers may be activated:

• DOUBLE: Gold coin and lightning money symbols may appear. Collecting them awards values twice.
• EXPAND: The game grid may expand to 7×6. Marked zones can expand up to 7×6, awarding additional respins.
• SPINS: The +1 SPIN value can appear on symbols; collecting it awards an additional respin.

Maximum Win

• The maximum potential win is limited to 10,000x the total bet. If this threshold is reached, the round ends and remaining respins are forfeited.

Volatility and RTP

• This is a high volatility game.
• The RTP is shown in-game.
• Minimum bet: £0.20
• Maximum bet: £4.00

How to Play

1. Use the plus (+) and minus (−) buttons to change the bet value.
2. Select the desired bet to use in play.
3. Press the SPIN button to start.

Main Interface

• The settings button opens the settings menu (controls audio and game settings).
• Credit and Bet labels show current balances.
• The plus (+) and minus (−) buttons change bet denominations.
• The spin button starts the game.

Settings Menu

• INTRO SCREEN: Toggle on/off.
• AMBIENT: Toggle ambient sound and music on/off.
• SOUND FX: Toggle game sound effects on/off.
• GAME HISTORY: Opens game history page.
• BET MENU: Shows bet multipliers and total bet in both coins and cash. Use plus (+) and minus (−) buttons to adjust values.
• INFORMATION SCREEN: Scroll through information pages.
• The 10,000x maximum potential win cap applies to all rounds and features.

Malfunction voids all pays and plays.

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Hammerstorm Demo Play

If you’re curious about Hammerstorm demo play or exploring this slot for the first time, you’ve come to the right place. Although we don’t offer access to demo play, this page highlights everything you need to know, based on the official help and feature information.

Discover how the main elements of the game work, including bonus symbols and payout structures, just as you would in a standard demo mode.

Whether you’re reviewing the gameplay mechanics before wagering real money or simply comparing Hammerstorm with other online slots, the detailed breakdown here offers a close simulation of how it feels to play for free.

*All values (Bet Levels, Maximum Wins etc.) mentioned in relation to this slot game are subject to change at any time. Game features mentioned may not be available in some jurisdictions.