
The iGaming industry has shifted remarkably since the first online casino opened in 1994. Before the digital revolution, slot games were exclusive to in-house bookmakers and brick-and-mortar casinos, though a lot has changed since then. With the world’s transition to digital devices, it was not long before gaming developers moved to online gaming. The introduction of online gaming transformed the industry by enhancing accessibility and opportunity. The online slot sector has evolved significantly since its inception, creating vast possibilities for developers to expand the range of bonus features available today.
The Role of Bonus Features in Online Slots
Bonus features play a pivotal role in online slots, adding an element of fun to slot games worldwide. They enhance depth and variety in gameplay, enabling slot developers to differentiate their games. These features are essential for gameplay diversity by making slot games more dynamic and memorable for players with distinctive mechanics and visuals.
Such bonus features add a layer of unpredictability, transforming each spin of the reels into a unique mini-game. While the primary function of bonus features is to keep the slot experience fun, they are often based around providing various ways for players to trigger prizes. Many casino bonus features are mechanically crafted to provide players with a specific game theme; for example, some popular fishing-themed games incorporate bonus features that involve catching fish. Additionally, bonus features provide options for all gamers. If players prefer advanced technical slot bonus features, there are choices available for them, as well as simpler slot games that include simpler mechanics.
The Variation of Bonus Features
Bonus features in online slots come in various unique ways to create a gameplay experience that is original and fun. One of the most popular methods of bonus features is a free spins feature that has become a staple in modern online slots. Free spins features often come with game-related features and are usually unlocked by simultaneously landing a designated number of matching scatter symbols on the reels. If the requirements are met, free spin features allow players to receive a certain number of free spins of the reels, to attempt to land matching symbol combinations. Also, these free spins features can often include extra layers to the game to make for a more interesting bonus. Whether expanding wilds or cash value symbols that can be collected, all additional bonus mechanics add to the slot’s gameplay.
The cascading reels mechanic is another bonus feature that has become a staple in online slots. This mechanic is commonly used in Megaways slots and allows for additional symbols to be added on the reels. Cascading reels allow for any matching symbols in play to be replaced by new symbols to create a further opportunity to create matching symbol combinations. Cascades of the reels are often limitless, allowing for cascades to occur whenever a matching symbol is landed on specific games that feature this bonus mechanic.
The wild bonus feature is used to help elevate base play in a wide range of online slots. The wild symbol can be landed on the reels commonly in base games, and can substitute for other base symbols to create or extend matching symbol combinations. This bonus symbol can sometimes come as a ‘sticky wild’, meaning the wild will remain on the reels for a certain number of spins or ‘cascades’. Wilds can also come as ‘expanding wilds’, which are able to extend, covering the full reel, creating additional chances to land matching symbol combinations.
In addition to these commonly found bonus features, other unique features can be unlocked in online slots.
Notable Bonus Features in Iconic Slot Games
One of the leading titles, Big Bass Splash, was developed by Reel Kingdom. The game features a fishing theme in the imagery and bonus features. The bonus feature is unlocked if 3 or more scatter symbols land on the reels, and the player will be awarded free spins on the reels. The bonus feature helps express this theme with fisherman Wild symbols that can catch fish symbols if landed simultaneously. The fish symbols during these bonus spins carry various prize values attached that are automatically awarded should the fisherman symbol reel them in.
Another leading online slot developed by Pragmatic Play that incorporates a unique bonus feature is the Gates of Olympus slot. The game features an Ancient Greek theme, which is expressed in the backdrop of Mount Olympus, and also in the slot’s bonus feature. This slot features the cascading reels bonus feature, but the main, thematic bonus feature is the free spins feature. This feature expresses the Ancient Greek theme using the Greek mythological god, Zeus, as a mainstay in the bonus. The bonus is activated, providing players land 4 or more scatter symbols in view on the reels, and will trigger free spins if done. In the bonus feature, Zeus can strike down lightning multipliers that can be added to matching symbol combinations at the end of the cascading effect.