Searching for an honest Submariner review before you commit real money? You're in the right place. Built by KA Gaming, it lands as a slot game with high volatility and 96.61% RTP. It's built around a fish and ocean theme and plays out on 40 paylines across 5 reels. It first went live in 2024 and still earns its place today. If everything lines up, Submariner can pay up to 5,000x your bet. Here's how it stacks up.
Written by James Holloway · Last updated: January 2026
Submariner is a game from KA Gaming, wrapped in a fish and ocean theme. It runs on 40 paylines across 5 reels with a high volatility profile, and a return-to-player rate of 96.61%.
The mechanics are what make Submariner interesting. Look out for scatter symbols that unlock free spins and extra bonus rounds. The high volatility means patience is rewarded — expect quiet spells broken by bigger hits. Overall it's a well-rounded game that knows what it is.
With an RTP of 96.61%, 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.
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.
Submariner 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
Submariner by KA Gaming is a solid offering that delivers good entertainment value. The 96.61% RTP combined with high volatility creates a well-balanced gaming experience.