Bob Marlin Goes Deep, a fishing slot from Yggdrasil Gaming that doesn’t have the usual money symbol collection mechanic that we see in fishing slots. So, instead of casting lines to reel in cash symbols, this slot is all about reel expansion, symbol collection, and two separate free spins modes. With bright artwork and a friendly angler by your side, it is set for a relaxed fishing session.
While Yggdrasil is not the first name you think of when it comes to fishing slots, they have made a few slots that fit into the genre before. This time around, they aim for a low volatility and more casual experience not a big win bonanza. It is true that this appeal to some players, but the question is does it go deep enough to compete with the best in the sea? Let us find out.
And if you are looking for a more volatile experience perhaps Bob Marlin Goes Splashing might be the one for you. You can check out the mini review further down in this article.
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Bob Marlin Goes Deep Slot Info
| Bob Marlin Goes Deep | Stats |
|---|---|
| Number of Reels and Rows | 5×4 to 7 |
| Pay Lines | 1,024 to 16,807 ways to win |
| Minimum Total Bet | £0.10 |
| Maximum Bet | £125 |
| RTP | 96.8% |
| Max Win | 3,905x |
| Bonus Features | 2 Free Spins Modes, Instant Cash Collect, Wilds with Multipliers, Retriggers, Double Chance, Bonus Buy |
| Feature Buy Option | No |
Bob Marlin Goes Deep is a light-hearted fishing-themed slot with expanding reels, two types of free spins, and a super high-paying symbol mechanic tied to a unique fish collection system. With a low volatility math model and a generous default RTP of 96.8%, it offers a more chilled-out, slower-paced gameplay experience for casual players rather than those seeking high-stakes explosive fishing adventures.
How To Play Bob Marlin Goes Deep
It is worth trying the Bob Marlin Goes Deep demo version before you play for real money. The features can take a few spins to understand, especially the fish collection mechanic and how the grid expands. Playing the free version gives you a solid feel for how it all works without depleting your bankroll. But if you want to get right into real money action, then hit up one of our top-rated online casinos above.
Playing Bob Marlin Goes Deep is simple. The only thing is the setup that can be a little different from your usual fishing slot. It plays out on a 5-reel grid, which starts with 4 rows and can expand up to 7 rows during play. This also affects the number of ways to win. You start off with 1,024 and can go up up to 16,807 ways, when the grid is fully expanded.
To begin, select your stake from £0.10 to £125 per spin. Once you hit the spin button, Bob Marlin himself, pulls the crank to set the reels in motion. Base game includes regular symbols that pay across adjacent reels from left to right, but there are no wilds here to help you along.
Scatters are the most important symbol as they can expand the reels by adding extra rows and also trigger regular free spins. Fish symbols also appear on the bottom rows and are part of a collection system. Collecting sets of fish can unlock better paying Free Spins, where the high-paying symbols are available.
Winning Combinations & Payouts
Wins are created by landing matching symbols from left to right on adjacent reels, starting from the first reel. With the default 5×4 setup, there are 1,024 ways to win, which increases significantly as the reels expand up to a maximum of 16,807 ways.
- Low-Paying Symbols: J, Q, K, and A when landing 5 of a kind it pays up to 0.6x your bet.
- High-Paying Symbols: Tackle boxes, reels, hooks, and cans. These pay between 0.8x and 1.4x for 5 of a kind.
- Super high-paying symbols: These only appear during Collection Free Spins and come in four colours: blue, green, purple, and red each matching the fish you collected to trigger the round. Land 5 matching symbols, and you can expect payouts between 2.8x and 4x your bet.
Special Symbols
Bob Marlin Goes Deep keeps things minimal when it comes to special symbols, opting for a slightly stripped-down setup compared to other fishing slots. No wilds, no multipliers, and no instant cash symbols. The game is all about the expansion and collection features.
Scatter Symbol
The Scatter symbol is the key to expanding the reels and unlocking both free spins modes. Scatters only appear on reels 1, 3, and 5. When one lands, it adds an extra row to the bottom of the grid—up to a maximum of three extra rows. Hit all three scatters in one spin and you trigger the standard Free Spins feature.
Collectable Fish Symbols
These only show up on the extra rows added beneath the base grid. There are four coloured fish (orange, blue, green, and purple), each linked to their own set of Collection Free Spins. Collect 5 of the same colour and you unlock a special bonus round featuring that fish’s matching super high-paying symbol. You start with 3 orange fish on your first session, giving you a small head start.
Bob Marlin Goes Deep Free Spins
Bob Marlin Goes Deep has two main bonus features: Regular Free Spins and Collection Free Spins, which are tied to the collectible fish mechanic. To trigger free spins, you need to land at least 3 scatters in the base game. Each scatter that lands in the base game, adds an extra row to the bottom of the grid. You can expand up to 7 rows total, giving you more up to 16,807 win ways. The expanded rows reset after every spin unless you trigger free spins. Once triggered you receive 10 free spins on a fully expanded grid.
Collection Free Spins
When you collect 5 fish of the same colour in the base game, you unlock collection free spins. Each collection earns you 5 Collection Free Spins, played on a full grid. But here you get high-paying symbols that match the colour of the fish you unlocked. These symbols can pay between 2.8x and 4x for 5 of a kind too.
If you complete more than one fish collection at the same time, then Collection Free Spins are played in order: blue, green, purple, and then orange. And if you happen to trigger both Free Spins types at once, regular Free Spins are played first.
Bob Marlin Goes Splashing
If you liked Bob Marlin Goes Deep but wanted something a little wilder and more volatile then Yggdrasil’s follow-up, Bob Marlin Goes Splashing, takes Bob and go in a new direction that might be more to your liking. Released in September 2025, this 5×4 slot runs on 25 fixed paylines. It cranks up the intensity with high volatility (5/5) and a max win of 6,000x your bet. This is nearly double the payout potential of Goes Deep. However, it comes with a noticeably lower RTP of 94%, making it a little more riskier overall.
In the first slot Bob Goes Deep and is focused on reel expansion and fish collection. In Splashing Bob adds several features. You get RushingWilds, WildFight battles, sticky Wilds with multipliers, re-spins, and the Super Duck Collection system. There is also a Buy Bonus option in Goes Splashing so you can skip straight to 10 free spins for 65x or start with a random Super Duck for 390x. This is of course only if you play in a region that allow these features.
How Does Bob Stack Up Against Bob?
| Feature | Goes Deep | Goes Splashing |
|---|---|---|
| Release | July 2025 | September 2025 |
| RTP | 96.8% | 94% |
| Volatility | Low | High |
| Max Win | 3,905x | 6,000x |
| Grid & Paylines | 5×4–7, up to 16,807 ways | 5×4, 25 fixed paylines |
| Features | Reel expansion, fish collection, 2 free spins modes | RushingWilds, WildFight, sticky Wild multipliers, Super Duck Collection, re-spins |
| Bonus Buy | No | Yes |
Bob Marlin Goes Splashing Conclusion
Compared to Bob Marlin Goes Deep, this one is far more volatile and feature-packed. Goes Deep offers a more chilled, steady experience with expanding reels and casual wins. And Goes Splashing is more chaotic and have a rubber-duck-powered bonus frenzy with huge multipliers and higher stakes. If you prefer big swings and big rewards, this is the better pick. But if you want relaxing fishing vibes, stick with Goes Deep.
Frequently Asked Questions Bob Marlin Goes Deep
Bob Marlin Goes Deep has a default RTP of 96.8%, which is above average. However, there is also a lower RTP version set at 90.5%, so always check the version you are playing.
This is a low volatility slot, meaning wins may come more frequently but are generally smaller in size. It is designed for casual players rather than high-risk, high-reward gameplay.
The top win is 3,905x your stake. While not huge by today’s standards, it is fairly decent for a low volatility slot.
Yes, it has two. One is a regular Free Spins round triggered by scatters, and the other is the Collection Free Spins, activated by collecting five fish of the same colour. The latter includes super high-paying symbols.
Yes, a demo version is available. It is a good idea to try it first to understand how the expanding reels and Collection Free Spins work before playing for real money.
Conclusion
Bob Marlin Goes Deep feels like a fishing slot that tried to do something different but came up very short. While it deserves credit for moving away from the usual money symbol + collector setup, the result is a slow-paced, low volatility game. Moreover, the max win of 3,905x is quite poor too. The grid expansion mechanic has potential, but without cascades or wilds, it often fizzles out before anything fun happens.
If you enjoy Yggdrassil games, give it a try. But there are much better rewarding games to play.
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