Welcome to our deep dive on The Lost City of Atlantis — the demo, the maths, and whether it earns a spot in your rotation. Developed by GMW, The Lost City of Atlantis arrives with medium high variance and 95.99% RTP. Visually it's wrapped in polished, characterful visuals, with the action running on 5 reels and 20 paylines. Top wins are capped at 5,000x your stake, a healthy ceiling worth chasing. Dating back to 2021, it remains a regular pick. So does it deliver? Let's get into it.
Written by Sophie Williams · Last updated: January 2026
The Lost City of Atlantis is a slot from GMW, wrapped in polished, characterful visuals and powered by 5 reels and 20 paylines. The result is a medium high-variance maths model paired with a return-to-player rate of 95.99%.
The mechanics are what make The Lost City of Atlantis interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. The medium high volatility strikes a middle ground that should suit most playing styles. Overall it's a well-rounded slot that knows what it is.
At 95.99%, 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.
The Lost City of Atlantis 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.
3.0 / 5 — Good
The Lost City of Atlantis by GMW is a solid offering that delivers good entertainment value. The 95.99% RTP combined with medium high volatility creates a well-balanced gaming experience.