Behind Bars Masterplan Slot Review: Bullshark Prison-Break Bonus Game

by Angelina Vodenicharova, 14 May 2026

Behind Bars Masterplan by Bullshark Games turns a prison-break setup into a reel multiplier chase, using scatter pays, cascading wins and two escape-style bonus rounds. Its main feature is the way multipliers build across the grid, giving each drop a chance to unlock bigger rewards.

Behind Bars Masterplan has a 6×5 grid and offers multipliers, cascading reels and a bonus buy feature.

Behind Bars Masterplan in Brief:

• Release Date: 30 June 2026
• Type: Video Slot
• Theme: Prison
• Reels: 6
• Rows: 5
• Payout Rate: 92.34%, 94.31%, 96.29%
• Software Studio: Bullshark Games
• Special Features: Cascading Wins, Bonus Rounds, Scatters, Multipliers
• Volatility: Medium

The new slot, Behind Bars Masterplan by Bullshark Games, is a prison-themed game with jailbirds wearing orange overalls. The game features cascading wins, multipliers and a ranging RTP between 92.34%, 94.31%, and 96.29%.. Players outside of the UK can also purchase the bonus buy feature.

The slot is based on a massive 6×5 grid with multipliers featured at the top. To win, at least 8 matching symbols must land anywhere on the grid. As long as the symbols keep winning, the cascading feature will trigger. With multipliers, the maximum amount you can win is 12,000x your bet.

A medium volatility new UK slot, Behind Bars Masterplan is available to play at all the best slot sites for real money or demo. The best paying symbols are nightsticks, toilet paper, soap, IDs, and keys, while the lowest ones are the playing cards Jack – Ace.

Layout and Cascading Wins

Behind Bars Masterplan uses a wide 6×5 layout, so the action has plenty of space. Wins are formed through scatter pays, meaning matching symbols can connect from anywhere on the grid. After each win, those symbols disappear and new ones drop in, giving each cascade another shot at building something bigger.

Scatters and Multipliers

Scatter symbols are where Behind Bars Masterplan starts to come into its own. Three scatters trigger the Escape Plan, while four unlock Great Escape. Reel multipliers sit above the grid and can turn simple-looking wins into sharper hits, especially when several reels connect during one cascade.

The Escape Plan acts as the main bonus route, using free spins to stretch out the multiplier chase. It feels like the standard prison-break attempt, where every cascade matters because boosted reels can push the round into stronger territory.

The Great Escape is the bigger version, triggered by four scatters. This feature starts with extra multiplier help, giving players a better opening position before the spins begin. It does not reinvent the game, but it does make the bonus feel more dangerous from the first drop.

Bonus Rounds

Bonus buy options are included for markets where the feature is allowed, but UK players should not expect to see them at UK licensed casinos.

Outside the UK, Behind Bars Masterplan offers four paid routes, split between lighter bonus-chasing tools and direct access to the main features.

BonusHunt FeatureSpins cost 3x the bet and are built for players who still want to spin normally, but with a better shot at landing the bonus. These spins increase the chance of triggering a feature by 5x, so it’s more of an enhanced base game than a full bonus buy.

The free spins feature which is triggered by landing three or four scatters across the reels.

Surprise Inspection FeatureSpins are much bigger at 50x the stake. Every reel receives a random multiplier of at least x2, and the game guarantees at least one win, giving the round a more loaded feel from the first drop.

The Escape Plan can be bought for 100x, sending players straight into the standard free spins round. The Great Escape costs 250x and opens the stronger version, with better multiplier conditions before the bonus gets moving.

Our Verdict

Behind Bars Masterplan is a smart prison-break slot with more bite than its playful theme first suggests. Bullshark Games provides the action with a proper engine through scatter pays, cascading wins, and reel multipliers, while Escape Plan and Great Escape keep the bonus side moving.

Compared with other prison-themed slots like Le Bandit, it feels more authentic and easier to follow, yet still has enough tension to make each drop matter. For players who enjoy this slot type with strong multiplier potential, Behind Bars Masterplan is worth playing for real money.