Iron Bank

While a lot of bank robbery-themed online slots tend to be rather simple, the characters in Iron Bank have done extensive planning in an attempt to loot the main vault. They have even acquired a blueprint for the bank itself, that players can see during the bonus mode. As for the board itself, there are a total of 6 reels, with a town in the background and the infamous 'Iron Bank' to the left. 

This slot was created by Relax Gaming, in collaboration with their community. Relax are a large software provider that has created an extensive portfolio of games since they started operations in 2010. Some of their most popular games include Rulers of the World: Empire Treasures, Buffalo Blitz Megaways, and Sahara Riches: Cash Collect. 

The standard 10, J, Q, K, and A symbols all feature in Iron Bank. Premium symbols are up next, shown as a box of cigars, a bottle of liquor, a banana, a vase, and a bull. These icons can award players with up to 2x, 3x, 4x, 10x, and 50x their stake size respectively, should 6 match along a payline.

Wilds are one of the special symbols, displayed as a Jaguar. Like in most online slots, these can replace any standard or premium symbol to create a matching combination. There is also a scatter symbol and mystery symbol, both of which are linked to bonus modes. 

During the base game of Iron Bank, there is a total of three different features that can trigger randomly during each spin. First is the random scatters, with 1, 2, or 3 being added at the start of the spin. This modifier can increase the chances of players triggering the main bonus mode. 

Another symbol that can randomly appear in the base game is mystery symbols, all of which will transform into the same icon after the spin is complete. Finally, fully stacked multipliers can appear on reels 2, 3, 4, or 5, with multipliers of 2x to 10x being shown on each. Should a matching combination be formed, the corresponding multiplier will be applied to any potential winnings.

As we touched on earlier, landing three or more scatter symbols will trigger the free spins bonus mode. If a total of 4, 5, or 6 scatter icons appear, players will be awarded with 20x, 200x, or 2,000x their stake size, in addition to the bonus feature. A screen will then appear, offering the choice of three different bonus modes.

The first bonus mode will see players starting with eight free spins. Before these spins commence, a random icon will be selected. Should it appear, it will transform into a mystery symbol while also locking in place for the rest of the round. At the end of each spin, all mystery icons will display the same symbol. Players can also be awarded with an additional spin if an entire reel is filled with mystery icons.

A total of 10 spins can be awarded with bonus mode number two. Throughout this round, two of the middle reels will be highlighted, and if a wild appears on either, it will fully expand. Should this wild icon form a matching combination, it will lock in place for another spin. A multiplier will also become associated with the wild, increasing by 1x each time an additional combination is formed. If a wild appears on both of the middle reels, any multipliers will be multiplied together, before being applied to any potential winnings.

The last option for players will award 12 spins. During this mode, boxes of coconuts can land on reels 2, 3, 4, and 5. These coconuts will be collected, and every two that appear can increase the reel multiplier by 1x, while also filling a meter. In total, the meter has 3 sections, meaning that every time six coconuts are collected on the same reel, it will become fully illuminated before awarding players with 3 more spins. Should a wild land on one of these reels, the corresponding multiplier will be added to it. If more than one wild is part of a matching combination, the multipliers will again be multiplied by each other, not added together.

In conclusion, Iron Bank is a slot that does not have a shortage of bonus modes and base game modifiers. Another strong aspect of this slot is the smooth animations and interactive sound effects, both of which can help to increase immersion levels!