Bob Marlin Goes Deep
- RTP
- 96.80%
- Volatility
- LOW
- Max win
- 3,905×
- Hit freq
- -
- Grid
- -
- Bet
- -
- Released
- 2025-07-14
A playable demo is not available in your region.
Our take
Low-volatility fishing-themed Megaways slot from Yggdrasil with 96.80% RTP, expanding grid, and 3,905× max win.
Bob Marlin Goes Deep is a 5-reel Megaways game with a dynamic layout: the grid starts at 5×4 and expands vertically up to 5×7 depending on reel configuration. This generates between 1,024 and 16,807 ways to win. The 96.80% RTP is among the highest available, indicating Yggdrasil's confidence in the mechanic. The 20.67% hit frequency is low, reflecting a low-volatility profile paired with high RTP—a generous combination that favours players.
The fishing theme is central: players team up with Bob Marlin to catch fish as the reels spin. Boat symbols expand the grid vertically, and three boats trigger Collection Free Spins, where high-paying fish symbols land on a fully expanded 5×7 grid. Completing fish collections unlocks additional multipliers and extended free-spin durations. This collectible mechanic mirrors Moley Moolah's acorn system.
The max win of 3,905× is modest but paired with the 96.80% RTP and low volatility, it's appropriate. Minimum bet is €0.10, maximum €125. Mobile performance is smooth throughout.
Pros
- 96.80% RTP is among the highest; exceptionally generous to players
- 20.67% hit frequency ensures wins every 5 spins on average
- Collection Free Spins with multipliers provide meaningful feature depth
Cons
- 3,905× max win is modest; low volatility limits upside
- Expanding-grid mechanic is visually complex for new players
- 16,807 ways on a 5×7 grid can feel overwhelming to some
Math & maxes
Math breakdown
- Volatility score
- 3 / 5
- Max win
- 3,905x the stake
FAQ
How does the expanding grid work?
The base grid is 5×4. Each boat symbol that lands adds a row, expanding up to 5×7. More rows means more ways to win, but also a larger multiplier per line.
What are Collection Free Spins?
During Collection Free Spins, fish symbols are collected on a metre. Completing collections unlocks multipliers and extended free-spin durations. High-paying fish land on the full 5×7 expanded grid.
Is 96.80% RTP real, or is it inflated?
The RTP is verified; Yggdrasil is transparent with certified RTPs. The 96.80% paired with low volatility (20.67% hit frequency) is intentional—the game prioritises player retention.
