2021 in Review: What Were the Standout Casino Slot Games of the Year

Top Casino Slot Games of 2021

As we move forward into 2022, it's an opportune time to reflect on the standout casino slot games that graced our screens in 2021. Evoking a thrill like no other, online casino games surged in popularity, thanks to their fantastic design, gameplay innovation, and unmatched jackpots. This retrospective takes a look at the top casino slot games of 2021, ones that encapsulated the spirit of gambling in the digital age.

'Gonzo's Quest Megaways'

Red Tiger Gaming took over the best-loved slot game from NetEnt and introduced the Megaways mechanic to create this mega slot variation. It accompanies the adventure-seeking conquistador Gonzo with up to 117,649 ways to win, iconic Avalanche feature, and maximum wins of up to 20,000 times your stake, making it a high-flying hit.

'Book of Dead'

Played on a 5-reel, 10-payline layout, this game by Play'n Go tapped into the enduring allure of Ancient Egypt. Combining gorgeous graphics and generous rewards, it features a free spins round with expanding symbols, which can lead to payouts of up to 5,000 times your stake.

'Sisters of Oz Jackpots'

Microgaming and Triple Edge Studios supplied the magic with this game. Brightly coloured reels, four progressive jackpots, and 'Synchronized Reels' make for an enchanting experience. Sisters of Oz delivers exciting chances to win with 20 pay-lines and payouts of 10,000 times your stake.


Starburst, by software giant NetEnt, is one of the most popular slots in the iGaming industry. Bursting with vivid colours and dazzling jewels, Starburst marvels with its game simplicity, expanding wilds, and re-spins feature. Despite lacking a grand free spin round or multi-level bonus features, Starburst's appeal lays in its simplicity and high pace, a testament to its staying power.


This slot game from NoLimit City puts players in the heart of the wild west. With an exciting 3-4-4-4-3 reel design and 576 ways to win, Deadwood offers a thrilling experience. Adding to the excitement is the xNudge feature and a couple of free spins rounds with massive win potential.

'Bonanza Megaways'

Big Time Gaming's Bonanza Megaways kept players hooked with its engaging gameplay, dynamic reels, and the opportunity to win up to 12,000 times the stake. The Megaways mechanic combined with cascading reels, free spins, and unlimited multipliers ensure unending excitement.

'Money Train 2'

This sequel from Relax Gaming outshone its predecessor with a whopping 50,000 times your stake win potential. With a steampunk western aesthetic, Money Train 2 packs a punch with multipliers, respins, free spins, and the iconic Money Cart bonus round. Despite being highly volatile, its compelling gameplay and high rewards have won players over.


This release by Relax Gaming is a pixelated trip down memory lane with an old-school vibe. However, don't let the retro graphics fool you; Hellcatraz is a high-variance, high-octane slot featuring mystery symbols, free spins, and a super mode of up to 51,840 times your stake.

'Age of the Gods: Norse - Ways of Thunder'

From the famed Age of the Gods series by Playtech, this slot delighted fans in 2021. Its Norse mythology theme brings gods like Thor and Loki to life on the reels. Boasting up to 3,125 paylines, three progressive jackpots, and the 'Lightning Feature,' the game promises gripping gameplay.

'Ali Baba's Luck Megaways'

Red Tiger Gaming combines the fun of Megaways with the charm of Arabian Nights in this 2021 standout. With a maximum of 15,625 ways to win and an intriguing 'Expanding Symbols' feature, it delivers extensive play and substantial rewards.

In 2021, a multitude of themes, innovative concepts, and feature-driven gaming mechanics underscored the evolution of online casino slot games. The standout games delivered immersive experiences, big wins, and a degree of novelty that kept players coming back for more. As we transition to 2022, these games offer a challenging yet rewarding benchmark for the year ahead.