Before you load Secret Symbol for real, spend a couple of minutes on how it genuinely performs. Built by RTG, it lands as a release with a medium high-variance maths model and a published RTP of 95.69%. Visually it's finished with a clean, modern look, with the action running on 5 reels and 25 paylines. The maximum win sits at 12,500x, so there's serious upside on the table. The full verdict is below.
Written by Sarah Mitchell · Last updated: January 2026
This slot game, Secret Symbol, is the work of RTG, wrapped in polished, characterful visuals. It runs on 25 paylines across 5 reels with medium high variance, and an RTP of 95.69%.
The mechanics are what make Secret Symbol 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. Its medium high variance balances steady wins with the odd larger payout. Overall it's a well-rounded slot game that knows what it is.
At 95.69%, 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.
Medium-high volatility means wins come less frequently but tend to be larger when they hit. Players should be prepared for dry spells between bigger wins, requiring a moderate bankroll.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Secret Symbol 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.
Secret Symbol 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.
3.1 / 5 — Good
Secret Symbol by RTG is a solid offering that delivers good entertainment value. The 95.69% RTP combined with medium high volatility creates a well-balanced gaming experience.