Thunder Gems Slot - Review, Free & Demo Play

To start playing Thunder Gems either for real money or in a free demo mode you have to:

• Open the slot in your desktop or mobile browser
• Click on the Settings Menu icon on the left side of the screen and see the available bonuses and symbols
• Adjust the game sounds by pressing the sound button in the lower-left corner
• Select your bet value between €0.2 and €20
• Click on the circular arrow button to start the first round
• Wait for your wins

Thunder Gems is a virtual slot machine with a 5x3 layout and an impressive number of 243 pay ways in total. In order to gain real cash wins, you have to land combinations of identical symbols on active paylines from leftmost to rightmost. All values on the paytable are dependent upon your selected bet value, meaning that if you bet more, you also have higher chances of getting more valuable rewards.

Before starting your game, make sure that you have studied the slot’s paytable thoroughly and know about all the present symbols and their payouts, as well as the bonus features that can multiply your rewards. The total win from each round is multiplied by your selected bet value.

While Thunder Gems is quite a generous slot machine in terms of symbols and bonuses, its RTP rate could’ve been much better. Given that the accepted medium in the industry is set at 96%, the RTP of this slot is 2% lower. It doesn’t necessarily make it a fruitless game with too many dead spins, but you may struggle to get big rewards at first anyway.

Thunder Gems is one of the newest slot machines on the market and its made with the use of HTML5 and Javascript technologies. Thanks to HTML5, you can enjoy this game in your desktop browser without downloading and installing any additional software to play. At the same time, this makes Thunder Gems a perfect online slot to play on mobile devices. There is no need to download any application for this: you can just launch the slot machine in your Android or iOS mobile browser and enjoy your spins whenever you have a stable Internet connection.

Octavian Gaming is an experienced slot provider that was founded in 2008 and is based in Italy. Even though the company is not as popular as some leading casino providers in Europe, its current portfolio is made up of over 100 high-quality titles. Octavian Gaming are masters at both classic and thematic online slot machines, providing gamblers with unique plotlines and memorable characters in almost every game. Some of the latest releases by the company include Fireballs, Scary Clown, God of Olympus, Fruits & Stars, and, of course, Thunder Gems, which we are reviewing today.

Free Spins

Free Spins in Thunder Gems are activated by Free Spins symbols: 3, 4, or 5 symbols pay 3x, 5x, and 10x your bet respectively and trigger the bonus round. In the beginning, you have to select 1 symbol to define the number of spins. During the Free Spins round, the accumulation bar on the top of the screen is locked, and a random multiplier between 1x and 50x is selected on each spin. Notice that if you activate Free Spins while the Advanced Mode is active, its rules persist.

Accumulation Feature

Do you see a bright purple bar on top of the reels? This is the so-called accumulation bar, and your every win during the base game fills 1 position on the bar. Gaining 3 winning combos in a row is enough to fill up the bar and activate the Advanced Mode.

Advanced Mode

The Advanced Mode in Thunder Gems is activated once you fill-up the accumulation bar above the game board. During this bonus round, all Wilds on the reels might be stacked in combos of 2 or 3 symbols, and a Cascade Feature is available.

Cascade Feature

The Cascade Feature in Thunder Gems is available during the Advanced Mode only. All symbols that do not participate in winning combos explode on the reels and disappear, creating room for more symbols to fall on the empty reel positions and increasing your chances of getting more rewarding combinations. At the same time, symbols that are part of winning combos, as well as Wilds and Free Spins symbols will remain in their positions.

In order to give Thunder Gems a try you don’t have to sign up with a casino and make a real cash deposit right away. Instead, you can try out all the features and bonuses of this slot machine in our free demo version. Just launch the demo from this page any time you want and enjoy Thunder Gems for fun without registering or downloading any special software. You are also not required to place a bet in real money in this demo mode.

The top win according to the paytable in Thunder Gems is 100x your total bet. You can get this stake multiplier by landing a winning combo of 5 BAR symbols on one of the active pay lines. Notice that winning such a prize is only possible if you select the maximum bet value before making a spin. Your stake can be also multiplied by the variety of bonus features this slot offers: Free Spins, Accumulation Feature, Advanced Mode, and a Cascade Feature.

Thunder Gems is an entertaining slot machine with a classic 5x3 layout. It is a relatively new slot machine, so it has an impeccable graphical quality that remains on top regardless of the device you play on. Even though Thunder Gems doesn’t have an elaborate concept, the game is still packed up with some tempting bonus features that are likely to boost your luck. Make sure to play Thunder Gems in a reliable online casino or try out our free demo version as soon as you have the chance.