NetEnt is one of the more innovative games suppliers to online casinos like InterCasino and Crazy Vegas, with a focus on video slots. It has introduced several new concepts in slots play, the most popular of which is Cluster Pays. The slot game is played in a grid of 6x5 symbols. There are no paylines whatsoever. The key unit is a cluster, which is a group of like symbols that are connected vertically or horizontally. Winning combinations occur in clusters of a minimum specified number. All NetEnt Cluster Pays online slots have this underlying structure with unique individual features.

Aloha was the first NetEnt Cluster Pays online slot. The theme is Hawaiian. The high paying symbols are coloured wooden masks that are stacked two high and this helps in forming clusters more easily. The low paying symbols are pineapple, coconut, shell and flower. Clusters pay from 9 to 30 symbols. The Question Mark is the wild symbol. It transforms into the adjacent symbol that can create the biggest possible cluster. Aloha Cluster Pays comes with a feature known as Sticky Win Re-spins. This may be randomly triggered after any win. The winning symbols are held fixed and the other symbols spin again. If the size of the cluster increases one more re-spin awarded. You are paid after the final re-spin. The bonus feature awards from 9 to 12 free spins in which the low paying symbols are removed from the reels.

Emoji are visual representations used in digital communication and are extremely popular in social media. Emoji Planet was the next Cluster Pays slot game from NetEnt. The symbols on the reels are some of the most well-known emoji. The minimum cluster size is five symbols. Every win results in an avalanche in which the winning symbols disappear and are replaced by new ones. The bonus features are named after popular emoji. In the Pizza feature a 3x3 overlay of any symbol except of the wild will appear on the reel. In the Kiss Mark feature three sticky wild symbols will randomly appear on the reels.

The Legend if Shangri-La Cluster Pays is a recent release from NetEnt. Clusters of 9 or more symbols result in payouts. The guru symbols are leopard, elephant and monkey, which appear expanded over two rows. The low paying symbols are flower, butterfly, dragonfly and koi fish. The jade is the wild symbol. If two non-paying clusters of the same symbol appear then the Random Substitutions feature may be activated. It adds wild symbols till a win is awarded. Alternatively, the Stick Respins feature may be awarded. These positions are held fixed while the others spin again. There is free spins feature included as well.