In the online casino industry, thousands of new slot games are released each year, with many bringing unique gameplay experiences. Despite new developers releasing innovative titles frequently, slot sequels are often more successful in the iGaming industry. These sequel titles often feature designs similar to those of the preceding releases in the series, with the addition of a new game mechanic that adds a unique twist to the gameplay. Over the years, some slot games have made a notable name for themselves, with some titles becoming brands in their own right.
Big Bass
The Big Bass series is one of the most notable in the online real money casino industry, with all titles in the series being based around the fishing theme. What makes this sequel so special is not only its popularity but also its impact on the industry. Following the growth of the Big Bass series, the fishing theme has become one of the most popular genres, with many titles drawing inspiration from it.
The Big Bass series is a credit to Reel Kingdom, in partnership with iGaming giants, Pragmatic Play. The first release in the series was the Big Bass Bonanza slot game, which debuted on screens in 2020.
The original Big Bass Bonanza slot game took place in an underwater environment, a setting maintained throughout the series, with many follow-up titles featuring a similar setting. Despite all the titles in the series featuring a fishing theme, some titles have unique touches. With releases such as the Big Bass Amazon Xtreme slot, Reel Kingdom has added a jungle twist to the series, while still maintaining the fishing theme at its core.
To date, Reel Kingdom has released over 25 slot games in the Big Bass series, which shows no signs of slowing down, with numerous new instalments released in 2025.
Gates of Olympus
The Ancient Greek mythology theme is among the most popular in the iGaming industry, with hundreds of developers incorporating it into their releases. One of the most notable slots in the genre is Gates of Olympus, which takes players to the celebrated Mount Olympus. All titles in the series are set in the iconic location, which holds great significance in Ancient Greek culture and is believed to be the home of the Greek deities.
The Gates of Olympus slot and all following slot titles were developed and released by Pragmatic Play, with the first title debuting in 2021.
All titles in the series feature an Ancient Greek theme in their gameplay design, set in the clouds and featuring the Greek god Zeus. All titles in the series feature Mount Olympus in the backdrop, with many implementing a marble temple neatly decorated.
Despite all featuring a similar design, the titles have unique gameplay features that set them apart. For example, the Gates of Olympus Super Scatter slot was released in 2025, which has increased the overall maximum prize potential through a unique game feature.
Age of the Gods
Staying with the mythology-themed slot series, Playtech has based all releases on notable deities. Unlike the Gates of Olympus series, Age of the Gods titles are based on a range of themes, though the gods remain a constant across all titles. The first release in the series was Age of the Gods, which featured an Ancient Greek theme and a range of fitting deities in the background.
Following the success of the pioneering slot title in the series, Playtech released a range of instalments. A notable follow-up title from Playtech is the Age of the Gods Norse Gods and Giants slot, which features a Nordic theme in its visuals. Unlike the pioneering title that featured Ancient Greek deities, this release featured a range of Norse gods, including Thor.
This slot series has earned its reputation as one of the leading slot sequels in the iGaming industry thanks to its variety of gameplay. Many notable slot series in the industry base their releases on the same theme, incorporating the same visuals across different titles. Playtech has veered away from the same design, making all titles in the sequel unique, with many based on a completely different theme than the previous release.
Despite implementing unique visuals in most slot releases, many titles in the Age of the Gods series have implemented familiar bonus features to other slots in the series.
Final Thoughts
There are numerous slot sequels in the iGaming industry, with developers opting to release instalments of already popular titles rather than creating new games. These sequel titles are popular as the sequels often become brands in their own right due to previous success, and many people prefer to play a familiar slot rather than a new one. Many developers create slots that feature familiar visuals or bonus features because they don’t need to be made from scratch; instead, a small adjustment can make the title stand out.
Responsible Gaming
When playing online slot games, it is important to ensure gameplay remains safe and fun at all times.