Sadly, this Microgaming slot is not based on the heavy rocking tune by AC/DC, but that is probably the only negative we could find.
And fortunately, just like the namesake song, this slot does indeed rock.
Thunderstruck II is a Microgaming slot that’s an evolution of the original slot that was released in 2004 to great success, and this 2010 title features better graphics and fun bonus games.
In particular, the bonus rounds consist of a Microgaming innovation of a progressive free spins game with 4 different levels, each with their unique powers and variance.
Gameplay and features
Thunderstruck II is a 243 ways to win slot game, with bets that can range from $0.30 to $15.
While the original Thunderstruck slot has outdated graphics and looks more like a classic slot machine, and Thunderstruck II improves on this significantly by finally giving this popular title the visuals that it deserves. You’ll see some Nordic mythology heroes here such as Loki, Odin, Valkyrie and, of course, the god of thunder, Thor.
There are two more symbols with artwork, a Galleon, and the city behind the rainbow bridge, Asgard. Six more symbols are just your usual card symbols, but they still pay, there isn’t that much of a difference between the best- and worst-paying symbol.
The Thunderstruck II logo is the Wild, and it doubles all wins it helps create, which is always a good thing in a slot game.
There is a special Wild feature in Thunderstruck II that activates randomly, Wildstorm Feature, and up to all five reels can become Wild. Of course, this feature will often be responsible for some significant wins.
Great Hall of Spins Bonus Game
The Great Hall of Spins is the bonus game in Thunderstruck II, and it’s built on one of Microgaming’s most popular features, providing four levels of free spins game, each having a different number of free spins and a unique feature to go with them.
There are four options, as usual, and they are 10 free spins with a 5x multiplier, 15 free spins with a Wild Magic feature, 20 free spins with a Wild Raven feature, and 25 free spins with the Rolling Reels feature.
You progress through these levels by triggering the Great Hall of Spins.
You will need to enter the bonus game 15 times to reach the Thor level, where you’ll get those 25 free spins with Rolling Reels. This bonus feature will keep you playing for a long time, as it doesn’t pay off to leave the game just when you’re about to hit that next level in free spins.
Our verdict on the Thunderstruck II slot
The theoretical return to player (RTP) is 96.65% which isn’t bad at all, though you can change the odds in your favour by playing for a long time and making progress in the bonus feature. Of course, you’ll also hit the Wildstorm Feature many times if you play for a longer time. The game lets you do that; it doesn’t eat away your money too quickly.
Most players (us included) play this slot game as a marathon, and it’s worth it as you can get some nice wins. Thunderstruck II has a loyal following, and it remains one of the most popular slots and a title that carried Microgaming to new heights.
Where can you play Thunderstruck II?
The Thunderstruck II slot is found at all reliable Microgaming casinos. One of these Microgaming casinos is Casumo, which is one of our favourite online casinos.
You can play the Thunderstruck II slot at Casumo with a 200% bonus up to $€50 plus 200 free spins.