Sevens Staxx has been catching plenty of attention, so we put it through its paces to see how it really holds up. Developed by Greentube, Sevens Staxx arrives with a high-variance maths model and 95.16% RTP. Visually it's given an engaging visual treatment, with the action running on 5 reels and 25 paylines. If everything lines up, Sevens Staxx can pay up to 50,000x your bet. Let's break down what works and what doesn't.
Written by Sarah Mitchell · Last updated: February 2026
Sevens Staxx is a slot game from Greentube, given an engaging visual treatment and powered by 5 reels and 25 paylines. The result is high variance paired with an RTP of 95.16%.
The mechanics are what make Sevens Staxx interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. A progressive jackpot adds a wildcard payout that can land at any time. The high volatility means patience is rewarded — expect quiet spells broken by bigger hits. On balance, Sevens Staxx is a no-frills option worth a few spins in the demo first.
At 95.16%, the RTP is slightly below the industry average of ~96%. While this is typical for many popular slots, players should be aware of the slightly lower theoretical return.
High volatility means longer gaps between wins, but when wins do land, they can be significantly larger. A bigger bankroll and patience are recommended for this type of slot.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Sevens Staxx features scatter symbols that can trigger free spins rounds. Landing the required number of scatter symbols anywhere on the reels activates the free spins feature, giving you extra chances to win without additional bets. During free spins, special modifiers may apply to boost your winning potential.
Sevens Staxx features a progressive jackpot that grows with every spin placed by players across the network. The jackpot can be triggered randomly or through a special bonus feature, offering the chance to win a life-changing sum. The jackpot continues to grow until one lucky player hits the winning combination.
2.9 / 5 — Average
Sevens Staxx by Greentube provides a straightforward slot experience. While it may not break new ground, it offers high volatility gameplay that will appeal to certain player preferences.