If you're trying to work out whether Great Ocean is worth your time, this hands-on review breaks it down. This is a Platipus release, sitting firmly in the a very high-variance maths model bracket and paying back an RTP of 96.5%. Dating back to 2022, it remains a regular pick. It's built around an ocean theme and plays out on 25 paylines across 5 reels. The maximum win sits at 250,000x, so there's serious upside on the table. The full verdict is below.
Written by Sophie Williams · Last updated: March 2026
Great Ocean is a slot from Platipus, built around an ocean theme and powered by 5 reels and 25 paylines. The result is a very high-variance maths model paired with an RTP of 96.5%.
Where Great Ocean earns its keep is the feature set. Look out for scatter symbols that unlock free spins and extra bonus rounds. With very high variance, this one is aimed at players who can ride out the swings for the top wins. All told, it's a solid entry in the Platipus catalogue.
With an RTP of 96.5%, this slot sits above the industry average of ~96%. Players can expect a solid return over extended play sessions, making it a good choice for value-conscious players.
Very high volatility delivers the most extreme payout profile — long dry spells punctuated by potentially massive wins. Only recommended for experienced players with substantial bankrolls and high risk tolerance.
About 1 in 3 spins results in a win. This is a moderate hit frequency that balances win frequency with payout size.
Great Ocean 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
Great Ocean by Platipus is a solid offering that delivers good entertainment value. The 96.5% RTP combined with very high volatility creates a well-balanced gaming experience.