Based on the popular game parents play with their babies, albeit adapting it for older crowd, Peek-a-Boo is an entertaining video slot from Microgaming that features playful ghost characters, a young ghostbuster, and a selection of candies, some of which are shaped like hearts and tombstones.

The graphics are decent enough considering that the game creators didn’t want anything to look too serious, while we also like the sinister sound effects triggered when winning combinations occur on the game screen.

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Software Provider

Peek-a-Boo was rolled out by Microgaming in October 2015 and we were delighted to see the five reel, forty payline game offer something new when compared to some of their other titles that were released in the last year or so, which have numerous similarities.

While other leading software providers have ensured their new releases remain fresh and interesting, Microgaming hasn’t exactly epitomised the spirit of innovation, although, as we said, Peek-a-Boo is definitely a step in the right direction.

How to Play

Even if 243 winning ways format has become somewhat of a standard for Microgaming, Peek-a-Boo is rather played at fixed 40 lines, allowing players to stake anywhere from 40 to 400 credits per spin, or between $0.40 and $100 per single spin.

The game options panel is in place to adjust the bet size, so simply click on bet and choose number of coins and coin size from a drop-up menu. The Free Spins meter and Pays icon are found on the right hand side, with additional options available in the bottom right corner.

Special Features

Each Ghostbuster icon appearing anywhere on reel III will zap one ghost per reel, with all zapped ghosts added to the Ghost Meter. Once ten ghosts are collected, the Free Spins round will be triggered, with up to 13 free games awarded.

As soon as the Free Spins round begins, the game-play format will change, as 1,024 way wins will replace the 40-payline scheme, thus further improving your winning chances.

Spooky Resin feature is also activated during Free Spins, with any three symbol win triggering one re-spin of reels IV and V, and any four symbol win triggering one re-spin of reel V.

Peek-a-Boo logo is Wild, appearing Stacked on all reels during base game and Super Stacked on reels IV and V during Free Spins.

Maximum Payouts

Featuring a 96.7% theoretical return to player, Peek-a-Boo is one of the best paying slots we have reviewed of late, and this is evident every step of the way.

The Free Spins round is easier to trigger due to symbols being collected over time rather than on a single spin as that is usually the case.

The maximum amount you can win per spin is $100,000, but even if the top prize eludes you, there will be some very good payouts heading your way.

Those Stacked Wilds appear quite frequently during base play, and if you happen to unlock the bonus round every once in a while, you will be able to seriously drive up your earnings.


Microgaming hasn’t been on top of their game of late, but Peek-a-Boo slot is enough to suggest a recovery may be on the cards.

The October 2015 release houses engaging gameplay, some innovative features and awards pretty impressive payouts in the main game, which is enough to win our seal of approval.

Having said that, the Free Spins round can be quite lucrative as well, although it might take you a while to fill up that Ghost Meter.

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