Thunderstruck II Slot Casinos: Top Picks to Play Online in the US
Written by Will Brown
The Thunderstruck II online slot was released in 2010 as a follow-up to Games Global’s popular Norse Mythology-themed slot. The game features many of the same symbols, but comes with more ways to win, a higher RTP rate, and offers players four distinct free spins bonus rounds that are unlocked with sustained play.
We’ve recommended several top Thunderstruck II online casinos available for players, with each guaranteed to be safe and secure through official licensing. These sites impressed our reviewers with their hefty welcome offers, high-speed payout options, and reliable mobile gaming apps.
Best Thunderstruck II Casinos in New Jersey
| Position | Online Casino | Rating | Bonus | Payments & Software Providers | Payout rate | Payout duration | Games | Secure Link | Bonus Terms |
|---|---|---|---|---|---|---|---|---|---|
 | |||||||||
| 1 | Hard Rock Bet | 4.7/5 | Up to 500 Bonus Spins + $1,000 Lossback |
PayPal, Instant Bank Transfer, Visa, Mastercard, American Express, Venmo, Play+, Apple Pay
Games Global, AGS, Ainsworth, Aristocrat, Bally, , BetDigital, Bragg, Big Time Gaming, Crucible Gaming, DWG, ELK Studios, Everi, Evolution, Fantasma, GameCode, Gaming Realms, Hacksaw, High 5 Games, IGT, Incredible Technologies, Inspired, Konami, Lightning Box, Light & Wonder, NetEnt, NextGen, Nolimit City, NYX, Pariplay, Pixiu, Play'n GO, Playtech, Playzido, Pragmatic Play, Red7, Red Tiger, ReelPlay, SG Digital, Shufflemaster, Side City, Slotmill, Spin Games, Spinberry, Wazdan, White Hat Gaming, Wild Streak, WMS |
96.00% | Instant, $10 - Unlimited | 2,833 | Play Here | Full T&Cs apply. Offered by Seminole Hard Rock Digital, LLC. All Rewards issued as non-withdrawable site credits. $10+ deposit required for 500 Bonus Spins for Cash Eruption™ only. Up to $1,000 back in casino bonus if player has net loss on slots after first 24 hours. Casino Bonus credit has a 1x wager requirement. Must be 21+ and present in NJ to play. Bet with your head not over it. GAMBLING PROBLEM? CALL 1-800-GAMBLER |
| 2 | Stardust | 4.9/5 | 100% up to $100 + 200 Free Spins |
PayPal, Visa, Mastercard, Play+, PayNearMe, Cash@Cage, Venmo, Online Banking, VIP Preferred
Games Global, Evolution, NetEnt, SG Digital, IGT, High 5 Games, WMS, Slingo, ReelPlay, Yggdrasil, Playtech |
96.00% | Instant, $10 - Unlimited | 1,700+ | Play Here | Valid for new customers only. Min. deposit $10. 100% match up to $100 bonus plus 200 spins on Starburst. Must select offer at deposit to receive bonuses. 20X play-through requirements. Only qualified games contribute towards wagering. 7 days validity period. Terms & conditions apply. |
Best Thunderstruck II Casinos in Pennsylvania
| Position | Online Casino | Rating | Bonus | Payments & Software Providers | Payout rate | Payout duration | Games | Secure Link | Bonus Terms |
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| 1 | Caesars Palace | 5.0/5 | $10 sign-up bonus + 100% up to $1000 + 2500 Reward Credits |
Visa, Mastercard, Discover, Amercan Express, VIP Preferred, Online Banking, Play+ Card, PayPal, Venmo, Interac e-Transfer, PayNearMe
Games Global, NetEnt, Playtech, IGT, WMS, Konami |
96.00% | Instant, $10 - Unlimited | 1,900+ | Play Here | Full T&Cs apply. 21+. New users only. Know When To Stop Before You Start.® Gambling Problem? If you or someone you know has a gambling problem, crisis counseling and referral services can be accessed by calling 1-800-GAMBLER (1-800-426-2537). Terms & conditions apply. |
Best Thunderstruck II Casinos in Michigan
| Position | Online Casino | Rating | Bonus | Payments & Software Providers | Payout rate | Payout duration | Games | Secure Link | Bonus Terms |
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| 1 | BetRivers | 4.7/5 | Up to $500 in Casino Losses Back |
Visa, Mastercard, Discover, American Express, Venmo, Online Banking, PayPal, Play+, PayNearMe, VIP Preferred ACH
Games Global, NetEnt, Big Time Gaming, IGT, Evolution, Playtech, Red Tiger, Light & Wonder, Hacksaw Gaming, NextGen, Greentube, Reel Play, Spin Games, Gaming Realms, Atomic Slot Lab, 4ThePlayer, Gold Coin Studios, Gameburger Studios, High 5 Games, Play’n GO, Just For The Win, Blueprint, Amaya, Inspired Gaming, Everi, All For One Studios, Ainsworth, Wild Streak Gaming, 2by2 Gaming, WMS, Rarestone Gaming, Aristocrat |
96.00% | Instant, $10 - Unlimited | 3,120+ | Play Here | New players only. Bonus paid as site credit expiring in 30 days. CASINO500: Bonus match of first deposit (up to $500). 1X playthrough requirement on select games. |
| 2 | Caesars Palace | 4.9/5 | $10 sign-up bonus + 100% up to $1000 + 2500 Reward Credits |
Visa, Mastercard, Discover, Amercan Express, VIP Preferred, Online Banking, Play+ Card, PayPal, Venmo, Interac e-Transfer, PayNearMe
Games Global, NetEnt, Playtech, IGT, WMS, Konami |
96.00% | Instant, $10 - Unlimited | 1,900+ | Play Here | Full T&Cs apply. 21+. New users only. Know When To Stop Before You Start.® Gambling Problem? If you or someone you know has a gambling problem, crisis counseling and referral services can be accessed by calling 1-800-GAMBLER (1-800-426-2537). Terms & conditions apply. |
Best Thunderstruck II Casinos in West Virginia
| Position | Online Casino | Rating | Bonus | Payments & Software Providers | Payout rate | Payout duration | Games | Secure Link | Bonus Terms |
|---|---|---|---|---|---|---|---|---|---|
| |||||||||
| 1 | BetRivers | 4.7/5 | Up to $500 Casino Losses Back |
Visa, Mastercard, Discover, American Express, Venmo, Online Banking, PayPal, Play+, PayNearMe, VIP Preferred ACH
Games Global, NetEnt, Big Time Gaming, IGT, Evolution, Playtech, Red Tiger, Light & Wonder, Hacksaw Gaming, NextGen, Greentube, Reel Play, Spin Games, Gaming Realms, Atomic Slot Lab, 4ThePlayer, Gold Coin Studios, Gameburger Studios, High 5 Games, Play’n GO, Just For The Win, Blueprint, Amaya, Inspired Gaming, Everi, All For One Studios, Ainsworth, Wild Streak Gaming, 2by2 Gaming, WMS, Rarestone Gaming, Aristocrat |
96.00% | Instant, $10 - Unlimited | 3,120+ | Play Here | Full T&Cs apply. New customers only. Must be over 21 years old. Minimum first deposit $10. Offer valid for 30 days. 1X wagering requirement applies to all bonus funds. |
This review has been designed to help you decide if you want to play Thunderstruck II for real money. We’ve included details about its symbols, payouts, features, and more, as well as recommended some similar games to try.
Overview of the Thunderstruck II Slot Game
Thunderstruck II in Brief:
- Release Date: 5 May 2010
- Type: Video Slot
- Theme: Norse Mythology
- Software Studio: Games Global
- RTP: 96.65%
- Volatility: Medium
- Special Features: Multiplier Wilds, Random Wilds, Scatters
- Bonus Rounds: Four Free Spins Rounds
- How to Trigger Bonus Round: Land 3 or more Scatter Symbols
I enjoyed playing the Thunderstruck II slot far more than the original. The gameplay experience benefits from visuals that were enhanced in a recent remaster, as well as a soothing score that responds to the game’s action.
Its RTP of 96.65% is favorable, while its base game Wild features offer sizable wins and surprises. The biggest perk, though, is its four free spin rounds, which offer progressively better perks the more that you unlock them.
More About Online Slots
Full Rules & Information About the Thunderstruck II Online Slot
The Thunderstruck II online slot has betting options that will appeal to low-to-mid budget players, with wagers hovering between $0.30 and $60 per spin. After choosing your stake, you can also toggle on fast play and autoplay settings.
Thunderstruck II Factsheet
| Reels | 5 |
| Rows | 3 |
| Pay Ways | 243 |
| Multipliers | Yes |
| Autoplay | No |
| Free Spins | Yes |
| Bonus Games | Yes |
| Jackpot | No |
| Min Bet | $0.30 |
| Max Bet | $60 |
You will win by landing three or more matching symbols anywhere on adjacent reels. This creates 243 ways to win with each spin, far more than the original’s nine fixed paylines.
Thunderstruck II Symbols & Payouts
There are 14 symbols in total that can land in the Thunderstruck II slot. These include, in order of lowest-to-highest value, the 9, 10, J, Q, K, A, Longship, Valhalla, Valkyrie, Loki, Odin, and Thor.
There is also a Wild and the Scatter Hammer. The Hammer pays most, with five anywhere awarding 200X your total bet, while Thor tops the regular symbols. If Wilds substitute in a winning payline, it will multiply the win 2X.
- All symbols: 14
- Highest-Paying Symbol: Thor
- Wilds: Multiplier Wilds
- Pay Ways Pay: Left to Right
- Maximum Win: 8,100x
Thunderstruck II Bonuses & Features
The first feature of the Thunderstruck II online slot is the Wild Storm, which is triggered at random in the base game. This can turn up to five reels Wild.
The second is the Hall of Spins free spins round, which is triggered when three or more Scatters land. The first time it is triggered, you’ll unlock 10 Valkyrie free spins, whereby all wins have a 5X multiplier applied.
After the fifth free spins trigger, you’ll unlock 15 Loki Spins. In this round, a Wild Magic symbol will appear on reel 3 and turn up to 15 symbols Wild. The 10th trigger will unlock 20 Odin Spins, which can see two ravens turn two symbols into Wilds with each spin, with 2X or 3X multipliers applied to each.
If two ravens land, up to 6X multipliers can be applied. In the final round, 25 Thor’s Spins are played with cascading reels. This sees winning symbols removed to form a cascade of new symbols. Every cascade will see a win multiplier increase by 1X up to a maximum of 5X.
Similar Games & Best Alternatives
If you’re looking for similar games to this, our Thunderstruck II online casinos have some great alternatives. Firstly, you may want to check out the original Thunderstruck. While it is more stripped-back, its multiplier free spins round and multiplier Wilds can produce big wins.
If it’s another ancient Norse-themed game you’re looking for, check out NetEnt’s Asgardian Stones. The game has more modern graphics, while offering avalanching reels, colossal symbols, a bonus wheel, and a free spins round.
Endless Free Spins to Unlock
We hope that now you’ve reached the end of our Thunderstruck II slot review, you’re aware if you want to play this game for real money. With a high RTP, medium volatility, and progressive free spins rounds to unlock, this game provides prolonged satisfaction.
The base game benefits from random Wilds, while its visuals create an engaging experience. If you’re not certain this game is for you, keep reading our reviews to find more of the best slots available to US players.