Quick answer
Bob Marlin Goes Deep is a Yggdrasil slot (2025) with 96.8% RTP, low volatility and a 3,905x max win. It uses paylines with free spins and expanding reels. An official free demo is available. RTP can vary by casino.
Key specs
- RTP
- 96.8%
- Volatility
- Low
- Max win
- 3,905x
- Grid
- 5×4
- Pays
- Paylines
- Released
- 24 July 2025
- Bet range
- $0.10–$125
- Jackpot
- None
Casinos with Yggdrasil games
- Lunaro100% up to $300 + 100 Free Spins25x bonusCarries YggdrasilPlay at Lunaro (opens in new tab)
18+. New customers. Min dep $10. 25x bonus wagering. Max bet $5. 30 days. 100 spins on Gates of Olympus at $0.20. Full T&Cs apply.
Key terms
18+. New customers only. Min deposit $10. 25x bonus wagering requirement. Max bet $5 while wagering. Free spins on Gates of Olympus at $0.20 per spin. Offer valid 30 days. Full T&Cs apply. Please gamble responsibly.
Check Bob Marlin Goes Deep is in the lobby in your country.
Themes:
Part of the Bob Marlin series.
Free demo Members
Try Bob Marlin Goes Deep with play money before deciding whether to play for real. Official Yggdrasil demos are free for GambGenius members.
How to play Bob Marlin Goes Deep (members only)
Wins are paid when matching symbols land on an active payline, usually left to right starting from the leftmost reel. Your total stake is spread across the lines, and each line win is the line bet multiplied by the symbol's paytable value.
Bob Marlin Goes Deep is played on a 5×4 grid with paylines.
- Set your stake. Choose your total bet per spin between $0.10 and $125. Wins are paid as multiples of this stake.
- Check the paytable. Open the game's info screen to see what each symbol pays and the exact rules for this version.
- Spin. Each spin's result is decided by a certified random number generator, independent of previous spins.
- Trigger the bonus. Land the required scatter symbols to start the free spins feature.
The full Bob Marlin Goes Deep guide: how winnings work, 2 features and 4 strategy tips
- Your stake plan: a $50 budget → about $0.50 a spin (low volatility)
- What 96.8% RTP costs per $100 wagered: $3.20 on average
- 2 features explained: free spins, expanding reels
- Stake plans for $20 to $250 budgets, checked against the $0.10 minimum bet
- 3 RTP versions compared: 96.8%, 94%, 90.5%
- 4 slots with the same style and a higher RTP (up to 98.6%)
- Strategy tips and a session planner for Bob Marlin Goes Deep
Free · no card · 18+ only
Never sold · export or delete any time · What do members get?
How winnings work (members only)
What 96.8% RTP costs per $100 wagered, the 3,905x max win at a $1 stake
The top prize is capped at 3,905x your stake. On a $1 spin that is $3,905; on $0.20 it is $781. When the cap is reached the round usually ends immediately.
What 96.8% RTP means
Expected return = stake × 96.8%
Over $100 of total bets, the long-run average loss is $3.20
RTP is a long-run average across millions of spins. Any single session can finish far above or below it, especially on a low volatility game.
Features explained (members only)
2 features explained: free spins, expanding reels
Free spins
A bonus round of spins played at no cost to your balance, usually triggered by landing three or more scatter symbols. Wins during the round are added to your balance, and many games let you retrigger extra spins.
Expanding reels
The grid grows during play, adding rows or reels and increasing the number of ways or lines that can pay.
Strategy tips (members only)
- Size your stake to the volatility. Low volatility means frequent, smaller wins and a smoother balance. It suits longer sessions and bonus wagering, but big multipliers are rare. A simple rule: bring at least 100 spins' worth of budget, so a $50 budget suggests a stake of about $0.50.
3 more tips and a session planner
- Check which RTP version you're playing. Yggdrasil offers this game at 96.8%, 94%, 90.5%. Open the game rules at your casino and prefer sites running the 96.8% version.
- Bonus wagering: at 96.8% RTP, clearing $1,000 of wagering costs about $32.00 on average. Check the bonus terms, as some casinos exclude specific games. Run your numbers in the wagering calculator.
- Set limits before you spin. Decide your loss limit and session time in advance and stop when you reach either. No pattern or betting system changes the outcome of a spin.
More on this in slot RTP and volatility explained and bankroll management.
Does it fit your budget? (members only)
Stake plans for $20 to $250 budgets, checked against the $0.10 minimum bet
For low volatility we suggest a budget of at least 100 spins. This is what that means for Bob Marlin Goes Deep (bets from $0.10 up to a maximum bet of $125).
| Budget | Stake a spin | Bet range | Average cost of 100 spins |
|---|---|---|---|
| $20 | $0.20 | Fits | $0.64 |
| $50 | $0.50 | Fits | $1.60 |
| $100 | $1 | Fits | $3.20 |
| $250 | $2.50 | Fits | $8 |
Averages only: a short session can end far above or below them. Set a loss limit before you play.
RTP versions (members only)
3 RTP versions compared: 96.8%, 94%, 90.5%
Yggdrasil supplies Bob Marlin Goes Deep in 3 RTP versions and each casino chooses which one to run. Over $1,000 of bets, the 90.5% version costs about $63 more on average than the 96.8% version.
| Version | Average cost per $100 wagered | Extra vs best |
|---|---|---|
| 96.8% (best) | $3.20 | — |
| 94% | $6.00 | +$2.80 |
| 90.5% | $9.50 | +$6.30 |
Open the game's rules or info screen at your casino to see which version it runs.
Seen a different version at a casino? How member RTP reports work
Same style, better RTP (members only)
4 slots with the same style and a higher RTP (up to 98.6%)
Slots with the same mechanic (paylines) and volatility (low) as Bob Marlin Goes Deep, with a higher published RTP. Casinos can still run lower versions of any of them.
1429 Uncharted Seas98.6% RTP · +1.8 pts
12 Zodiacs98% RTP · +1.2 pts
5 Lucky Lions98% RTP · +1.2 pts
Arcane Elements98% RTP · +1.2 ptsQuestions
Frequently asked questions
Who makes Bob Marlin Goes Deep?
Bob Marlin Goes Deep is developed by Yggdrasil and was released in 2025.
What is the RTP of Bob Marlin Goes Deep?
The default RTP of Bob Marlin Goes Deep is 96.8%. Yggdrasil also supplies versions at 94%, 90.5%, so check the game's info screen at your casino.
Is Bob Marlin Goes Deep high volatility?
Bob Marlin Goes Deep is rated low volatility. Low volatility means frequent, smaller wins and a smoother balance.
What is the max win on Bob Marlin Goes Deep?
The maximum win on Bob Marlin Goes Deep is 3,905x your stake, which is $3,905 on a $1 spin.
Can I play Bob Marlin Goes Deep for free?
Yes. GambGenius members can play the official Yggdrasil demo of Bob Marlin Goes Deep free on this page. It uses play money only, so demo wins can't be withdrawn, and it is for players aged 18 and over.
Does Bob Marlin Goes Deep have a bonus buy?
No bonus buy is listed for Bob Marlin Goes Deep in the sources we checked.
Where can I play Bob Marlin Goes Deep?
Lunaro carries Yggdrasil games. Check Bob Marlin Goes Deep is in the lobby in your country before you sign up. 18+ · New customers · T&Cs apply. Availability varies by country.
Where this data comes from
- yggdrasilgaming.com Provider
Specs are as published by the provider. Casinos can run lower-RTP versions, so always check the game rules before you play.
Game artwork © Yggdrasil, shown to identify the game.
