Top 5 Slot Machines of 2021
The first part of 2021 brought slot fans a steady stream of new releases, with notable titles arriving week after week.
Among the releases were Immortal Romance Mega Moolah from Microgaming, Stacked from Betsoft, and Kings Court Gem Splash from Playtech. Those are just a few examples. Did any make it into the top 5 slot machines of 2021?
Here’s our look at the titles we rated among the best slot machines at online casinos in 2021.
Gonzo’s Quest Megaways (Red Tiger)

NetEnt’s Gonzo’s Quest video slot is considered a classic and remains among the best-known games in its category. Red Tiger added Megaways to its take on the game in 2021, a version that may appeal to some players. It can feature winning combinations on up to 117.649 paylines.
Its layout uses 6x7 reels, with the Megaways mechanic changing the number of paylines on each spin. Each reel can show between 2 and 7 symbols. Gonzo’s Quest Megaways has a 96% RTP and high variance.
Starburst (NetEnt)

Nearly ten years after its debut, Starburst remains a fixture among well-known online slots. Made by NetEnt, it is a low-volatility game with a 96.09% RTP. Features include expanding wilds and re-spins; the bright visuals catch the eye, while the gameplay makes the game memorable.
When a wild symbol expands across a full reel, that reel stays locked while the others re-spin. This can create exciting win opportunities, particularly since Starburst pays in both directions.
Tiki Infinity Reels Megaways (Yggdrasil)

Tiki Infinity Reels Megaways had only recently arrived at online casinos when the review was written, yet it was already attracting attention. That interest followed the success of its sister title, Odin Infinity Reels X Megaways. The game combines the Megaways reel system with infinity reels, with a stated top payout potential of 10,000x the total stake.
Its medium variance and 96.07% RTP were described as industry-standard. Features to look out for include free spins, multipliers and a jackpot feature.
Age of Gods: God of Storms (Playtech)

The Age of Gods series is well known, and its God of Storms release offers another entry to consider. This Greek-themed game has 5 reels, 25 paylines, a 96.15% RTP and low-to-medium variance.
This video slot makes a strong visual impression with its graphics and animation. Its features add to the appeal: the Wild Wind Re-Spins feature and a progressive jackpot linked to a pooled network shared by over 20 video slots, as well as a live dealer Age of the Gods roulette table connected to the jackpot.
Money Train 2 (Relax Gaming)

Money Train 2 is a high-volatility title with a stated top payout of 50,000x. This 40-payline game from Relax Gaming lists an RTP range of 96.4% to 98% and includes several bonus features.
Its bonus features include re-spins, multipliers and a Money Cart round, where each symbol that lands has a special function. A Steampunk setting and detailed graphics complete the game’s presentation.
Conclusion
One of these titles may suit your preferences. The review rated all five as delivering a high-class online casino experience and argued that few slots could match the games featured here.
Evan Carrington brings more than 12 years of experience in the iGaming industry, with a focus on reviewing online casinos, assessing slot games and examining player safety. Their work covers casino licensing, RTP, volatility, bonus terms and withdrawal policies. Drawing on practical testing and independent research, Evan provides clear, evidence-based reviews to help players understand gambling platforms, their features and possible risks.