Agent 51 Slot

Agent 51 Slot
Published Date · March 1, 2021 · Last Updated · May 5, 2023
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Agent 51 Slot Review

Agent 51 Slot Overview

Agent 51 is a 2021 release from the popular software provider Kalamba Games. Agent 51 is in charge of extra-terrestrial affairs and invites you to join him on a quest to solve the latest alien mystery.

This slot has an unusually high hit frequency, meaning you constantly have smaller wins while you hunt for big wins.

Alternatively, you have several Bonus Buy options if you want to skip straight to the biggest wins.

These big wins are available in the base game thanks to the K-Loops, an interesting game mechanic that peaks on every 10th spin by expanding symbols in addition to the Free Spins Bonus round, which can have random Multipliers.

This all culminates in the chance to trigger the maximum payout of 5593x!

Agent 51 Slot Details











5,593 x

Software Provider

Kalamba Games



Design and Layout

Scatter Symbols Slots, 5 Reel Slots, Wild Symbol


Bonus Round, Multiplier, Free Spins

Aliens, a mysterious detective, free spins and Multipliers. What’s not to like? Agent 51 is an exciting slot with wins and actions on almost every spin, thanks to an unusually high hit frequency. The K-Loops expanding symbols feature means you have something to look forward to on every spin while you try to get to the Bonus for the 5593x max win!


Unique Theme

Fun Gameplay

Decent Payout Potential



Theme Not For Everyone

How To Play Agent 51 Slot

The game is played on a 5×3 grid of reels with 20 pay lines that you can use to trigger cash prizes when you land three or more matching symbols.

Bets start from just £0.50 per spin up to a maximum of £50 per spin.

The maximum payout in the game can be achieved by turning a high-paying character symbol into an expanding symbol with a 3x Multiplier.

The base game is enjoyable, with plenty of smaller wins and the K-Loops feature, but triggering the Free Spins Round via three Wild symbols will increase your chances of making bigger winning combinations.

Agent 51 Slot Features

The low-paying symbols include five different alien footprints. The gold footprint is the most valuable and is worth 3x your stake.

The high-paying symbols include four alien characters, with the Yellow Alien being the most valuable at 80x your stake for five-of-a-kind.

Agent 51 is a symbol that functions in two ways:

  • Scatter: Agent 51 acts as the Scatter, requiring three symbols to appear on the reels to take you to the Free Spins Bonus Round
  • Wild: In addition to his role as the Scatter, Agent 51 functions as a Wild symbol, replacing other symbols to complete wins. Agent 51 is also worth 80x your stake for five-of-a-kind.

K-Loops: Expanding Symbols Every 10 Spins

Throughout the base game, a Polaroid Camera symbol takes a picture of the alien footprints and symbols through spins 1-9 of each 10 spins. Collected symbols reset after the 10th spin.

You can trigger accumulation symbols collected within the nine files that sit on top of the reels on every spin.

On the 10th spin, all of the symbols that have been collected become expanding symbols if they land on your reels.

They will expand to cover an entire reel and can come with a 2x or 3x Multiplier attached. You can have several of these Multipliers active when you get to the 10th spin.

Just bare in mind these Multipliers are random, and you have to be lucky enough to collect these Multiplier symbols throughout the initial nine spins.

Bonuses and Free Spins

Landing three of the Agent 51 Wild/ Scatter symbols will trigger eight free spins.

At the beginning of every Free Spins round, a symbol will be randomly selected to become an expanding symbol for the Free Spins game’s duration.

If you land an accumulation symbol during the free spins round, an additional symbol will be selected to become an expanding symbol for the rest of the round.

You can retrigger eight free spins if you land another three Wilds.

While in the Bonus round, keep an eye out for an alien spaceship. Every time you land this “Extra Free Spins” symbol, you’ll get an extra two free spins.

Hyper Bonus

The Hyper Bonus allows you to buy your way to the Free Spins Bonus round.

It will cost you 45x, 63x, or 85x your stake for eight, 10, or 12 free spins.

It’s an expensive way to do it, but the free spins round does offer more opportunities to win and will save you a lot of time compared to grinding to the Bonus organically.

Agent 51 Slot RTP & Volatility

Agent 51 has a return to player of 96.17% and high volatility, a fairly common combination for online slots.

However, it feels slightly higher thanks to the unusually high hit frequency of 59%.

As a result, you can expect frequent smaller wins while you hunt for the Bonus and wait for your K-Loops to come in big.

Agent 51 Slot on Mobile

Agent 51, like all Kalamba games, is mobile-friendly. You can play from any iOS and Android mobile device.

It also responds to different screen sizes so you can play from your mobile, tablet or PC.

Graphics and Theme

The game is set in the dimly lit office of Agent 51. It’s organised chaos with cryptic clues and evidence scattered around the room.

The reels are set within a blackboard with even more sticky notes with vital information stuck around the outside, giving off an X-Files vibe.

Overall, the animations used to create this game are subtle but polished. Combine that with a slow and mysterious soundtrack that helps to build suspense, and you have an immersive slot that almost feels like an episode of some Sci-Fi drama show.

Agent 51


Matthew Wojciow

Content Writer

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