Boo

By Big Time Gaming

Boo by Big Time Gaming is a Halloween win ways slot with 4 reels and 4 rows. Wild symbols carry multipliers of up to 4x and reactions follow every win, bringing more premium and wild symbols into play each time. The highlight is the free spins round where EVERY position on the grid carries a persistent multiplier and each winning spin adds value to them at random. A lucky run could grow those multipliers to high numbers and take you close to a 47,050x max win. Spins start at 10p.

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Game Name Boo
Developer Big Time Gaming
Theme(s) Halloween
Release Date 24.09.24
Rows 4
Reels 4
Paylines 256
Volatility High
RTP Rate 96.54% | 94%
Max Win 47,050x
Min Bet £0.10
Format Win Ways

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Review Scorecard

Theme and Design: 7/10

RTP and Variance: 8/10

Maximum Win: 9/10

Symbols and Paytable: 8/10

Features and Gameplay: 7/10

Overall Score3.5/5

What Our Reviewer Says …

A typically light-hearted approach to halloween from BTG, but still volatile as hell and stacked to the rafters with powerful multipliers!

What We Like

  • Amazing free spins round with lots and lots of multipliers
  • Fun production with spooky ghosts
  • Wilds come with multipliers of up to 4x
  • Only premiums and wilds fill spaces left by reactions
  • Huge top win of 47, 050x

What We Didn't Like

  • Low symbol values in paytable
  • Tough to unlock that free spins round

Theme and Design

Ever wished that Big Time Gaming’s popular Pop slot could be  just a little spookier? Well you’re in luck. Boo has taken that one and given it a ghastly makeover. It is set in a haunted graveyard, shrouded in grey mist and filled with creaking trees and dimly lit by a creepy mansion. It’s classic Frankenstein-style spooky, one that will appeal to the old school horror fans.

Boo by Big Time Gaming
Boo Game Screen

The symbols are now slightly menacing little ghosts, in different colours, and a couple of pumpkins flank the reels to each side. It’s not the most unique theme, but it’s nicely done and perfect for a spooky-season revamp of a popular slot.

RTP and Variance

Boo has a default RTP of 96.54% which is very good. However, there is also an alternative RTP of 94% and some slot sites will choose to run the game at that level. You can check for yourself which setting you are playing at by browsing the game rules pages via the little hamburger icon next to the reels.

A good option to play this game is MrQ from Lindar Media. They always run slots at the optimum RTP rate.

No question this is a very volatile game from a slot provider renowned for pushing the variance to the limits. So, expect an uneven win distribution and the chance of some extended dry runs. And if you’re looking for a spooky game with a slightly friendlier volatility then try out Fear the Dark by Hacksaw Gaming. It boasts a similar RTP but only medium volatility.

Maximum Win

The top payout in Boo is a whopping 47,050x. BTG have produced games with bigger potential but it’s still a very good max win and a suitable top prize for a game as volatile as this one. Interesting to note though that Pop, which shares many similarities, has higher top payout of 66.960x.

Symbols and Paytable

This is a win ways game, played on 4 reels and 4 rows. That means wins are formed by landing 3 or more matching symbols on adjacent reels (regardless of their row position) from left to right, starting from the leftmost reel.

That gives you 256 win ways per spin (4x4x4x4).

Boo Paytable
The paytable with up to 2x for 4 ghosts

Symbols are not great. However, there are plenty of win ways, plus a whole array of powerful multipliers to help boost those payouts as we shall see.

The paytable includes 10 symbols in total, plus a wild and a scatter. The low-value symbols are 9, 10, J, Q, K, and A. Landing 4 of these symbols on adjacent reels pays out between 0.2x and 0.4x the bet. The premium symbols feature a variety of ghosts in green, blue, red, and purple. For these, landing 4 on adjacent reels pays between 0.8x and 2x the bet.

The game’s Wild Symbol, a multi-colored ghost, appears only on reels 2, 3, and 4 and can include multiplier values of up to 4x. The Scatter Symbol, represented by a scary pumpkin, triggers the Bonus Game when 3 or more land across the reels.

Features and Gameplay

Boo has pretty simply gameplay with just multipliers wilds in the base game. However, a multiplier-fest in the free spins round has the potential to really crank up the payouts. 

Reactions / Cascades After Each Win

Many studios call them cascades. BTG choose to call them reactions.

Whatever, it's the same deal. After every win, winning symbols are removed from the grid. Remaining symbols drop down to fill any spaces, before new ones drop in from above to complete the grid. In a nice twist, the new ones that drop in will always be ghosts, wilds or scatters (not low value symbols). 

If they create more winning combinations then the reactions keeps happening until no new wins are made. 

Wilds With Up To 4x Multipliers

The wild is shown as a multi-colored ghost. He can substitute for any symbol except the scatter to help you to complete win ways.

Wilds can only appear on reels 2, 3, and 4 but they MAY land with a multiplier of up to 4x to be applied to any win they are part of.

Wild Symbols in Boo
Wild symbols with 2x and 3x

Free Spins With Persistent, Progressive Multipliers

That's the base game. Simple, but things heat up considerably in the free spins round. This is triggered by landing 3 or more scatters (the halloween pumpkin). That gets you 12 spins.

The fun part is, now EVERY position on the grid has its own multiplier which persists throughout the round. And every time a winning combination that features a premium or a wild symbol is made (only on spins, not reactions) one or more of the winning positions will have their multiplier increased by 1, 2 or 3. 

NOTE: The positions on the grid where triggering scatters landed for the free spins round start with multipliers of 2x, 3x or 4x rather than 1x.

These multipliers are applied ONLY to the ghost symbols or the wilds in any win.

Finally, by landing 3 more scatters during the round you extend the round by 3 spins and increase the multiplier on each scatter position by 1x, 2x or 3x.

Final Verdict

Hitting recycle on a popular game might sound like an easy way out, but Big Time Gaming has done a great job of this one, taking Pop and turning it into Boo, with just the right blend of spooky and cutesy! But don’t let that light-hearted side fool you, this is a wickedly powerful slot game. BTG have thrown everything into reactions and multipliers, two of their favourite tools, and the result is a game that can produce sudden bursts of high value wins out of nowhere. As ever the best stuff will happen in free spins and it’s not hard to imagine a run of consecutive wins and reactions turning small multipliers into much bigger ones for a huge windfall.

Who Made Boo?

  • Name: Big Time Gaming
  • UK License: 38696
  • Total Games: 55 +
  • Known For: Inventing Megaways, super volatile slots, high max payout slots, rock n roll soundtracks
  • Popular Slots: Bonanza Megaways, Max Megaways, Outlaw, Danger! High Voltage
Big Time Gaming

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