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Gem games have been around forever in the world of online slots, and Play’n GO is a developer that has really gotten behind the theme over the years. Forge of Gems is the fourth title to be released from the team as part of its Gems series. Other titles before it include Frozen Gems and Perfect Gems. While most slots that use gems opt for either fairly generic gameplay or some sort of cluster pay mechanic, Forge of Gems attempts to put its own spin on the genre. In this Forge of Gems slot review, we are going to break all of its gameplay mechanics and bonuses and let you know whether it’s worth taking for a spin.


When you develop a slot based around gems, the symbols on the reels all but choose themselves, players will find a selection of different colored gems accompanied by the standard royal poker symbols here. Play’n GO has managed to create a good setting for the reels, though.
The reels are sat in front of a roaring forge, the same one in which the gems themselves were made. It creates a surprisingly intense atmosphere and helps to give the slot stand out in a genre full of bright colors and cheerful settings. This is all ramped up by the sounds of more gems being forged in the background.
The gameplay where Forge of Gems starts to stand out. The action unfolds over a standard 5x3 grid, but players will notice another row above the reels. The game calls this the Forge Reel and it comes into effect whenever players land a win, creating a cascading win effect. This also increases the number of ways to win in the game. On a standard spin, there are 243 ways to win, but once the cascades kick in, this can increase all the way up to 36,288.
Getting the game started is easy enough. Players can use the +/- at the bottom of the reels to adjust the stake. The minimum available bet is $0.10, and the maximum is $100, giving this a really healthy wagering range.
Any slot game with gems involved feels as though it has to be played on a mobile device at some point. Forge of Gems looks fantastic on the smaller screen and with most mobile casinos online now offering mobile play, it should be no issue finding one that suits your needs.
Play’n GO has loaded Forge of Gems up with a selection of both modifiers and bonus features. The slot uses a Cascading Wins mechanic. Whenever players land a winning combination, the winning symbols disappear, and more symbols drop into place. When this happens, the Forge Reel symbols will drop onto the reels. The Forge Reel doesn’t contain normal symbols, though it contains blank spaces and modifier symbols. There are five different modifiers that can drop onto the reels.
A Gold and Blue one will turn all symbols into Wilds on the reel it drops onto, a Pink Gem with a blue outside will do the same for rows, a Blue gem with a pink outside splits symbols into matching symbols, while one with two colored gems split symbols and acts as a Wild. Finally, there is also a Gold Multiplier gem that increases the win multiplier on each cascade.
The main bonus feature in the slot is the Gembox feature. In most top online slots, this would simply be referred to as the Free Spins Round. This is launched by landing three of the game’s Scatter Symbols. There are a few added twists, though. During the round, there are no blanks on the Forge Reel, and there are guaranteed Multipliers to drop on every cascade. The Multipliers will not reset for the duration of the spins.
The Forge of Gems slot has an RTP of 96.20%. The maximum win that can be secured in this highly volatile game is 20,000x the overall stake. These are all solid underlying numbers and they are going to appeal to most online pokie players.
The Gems series has been a success for Play’n GO, and that streak is likely to continue with Forge of Gems. The game sticks to the formula laid out in the previous titles and expands on it with some new bonus features. The theme itself is nothing groundbreaking, but the gameplay is fun, and the Forge Reel combined with the cascading mechanic and the Multipliers in the Bonus Round can lead to some good winning streaks when they get going.
Spin the reels of the Forge of Gems slot at our selected online slot sites.
Karolis Matulis is an SEO Content Editor at Casinos.com with more than 6 years of experience in the online gambling industry. Karolis has written and edited dozens of slot and casino reviews and has played and tested thousands of online slot games. So if there's a new slot title coming out soon, you better know it – Karolis has already tried it.
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