Cluster Tumble

It's time to take a look at a unique release that contains a mechanic enjoyed by many punters, known as cluster pays. However, the features within Cluster Tumble are not the only factors to consider, with the impressive appearance being another focal point. The online slot game revolves around an explorer, and the board has been made to look like a temple, with golden pillars on either side. 

Cluster Tumble was created by Relax Gaming, who are known for producing a variety of high-quality slots and board games. The most popular release by this provider is likely Money Train, which has been made into a series. Other titles in their portfolio include Space Miners and Temple Tumble Megaways, which features a similar concept to Cluster Tumble. 

Instead of the standard playing card-related icons that are found in many slots, Cluster Tumble has three different gemstones to represent the least desirable symbols. There is a sapphire, followed by an emerald and a ruby, which can award players with up to 50x their bet size. Next are the premium symbols, which include a blue mask, a green scarab, and a red dragon. These can award players with up to 100x, 100x, or 2,000x their stake size, respectively, should 40 or more create a matching cluster.

There are two bonus symbols for players to look out for in Cluster Tumble. First is the wild symbol, shown as a golden 'W', which can replace any standard symbol in a cluster. A scatter symbol can also be found, which can help players to trigger the main bonus. This icon is shown as a part of the pillar that can be seen on the left and right of the board itself.

During the base game of Cluster Tumble, matching combinations will disappear themselves, while also causing some of the adjacent stone blocks on the board to explode. This can open more positions for symbols as they drop in from the top of the screen. It's worth mentioning that the number of stone blocks and symbols is random with each spin. 

Some of these stone blocks may contain modifiers, which can activate when they are broken. In total, there are three different variations, with the first being a wild block. If this one is broken, a wild symbol will be added in its place. There is also a lightning block, which will transform into a symbol at random and create a matching combination with all of the identical icons on the board, regardless of whether they're in a cluster or not. Finally, there is a fire symbol, which will also turn into a random symbol, before transforming 1 or 2 other types of icons on the board into the same one.

There is also a free spins mode, which can be activated if all of the stone blocks are cleared from play, or if three scatter symbols drop in view. Players will start with five spins. However, if all of the stone blocks are removed during this mode, an additional three spins will be granted each time. The win multiplier will also increase by 3, starting at 3x, which is applied to any matching combinations. If scatters land on their own, an additional spin is awarded. Finally, different variations of this bonus can be bought directly within the game.

As the name suggests, this slot includes the cluster pays mechanic, which is the preferred payline format for many players. Cluster Temple is also loaded with visually appealing features, alongside an entertaining bonus mode and base game modifiers.