SixSixSix

SixSixSix Slot Review

If you have ever wondered what it would be like to gamble in Hell, then SixSixSix Slot by Hacksaw Gaming is the slot for you. The game takes its theme from horror and uses the ‘number of the beast’ 666 in order to create a frighteningly good time. With high variance and a maximum payout of 16,666x, this game certainly isn’t for the faint of heart. The dark graphics and bold features make for a thrilling ride with the Devil himself appearing in order to tempt you into making a deal.

There are also Wicked Wheels which turn during the main game, and this, along with the other features, makes SixSixSix an exhilarating experience for those brave enough to take it on.

Theme and Visuals

Aesthetic takes on a monochrome horror tinge, interrupted only by red accompaniments and multipliers. Two demon characters, Balthazar and Beelzebub, are to either side of the reels holding tridents in a menacing gesture as they preside over each spin. Grid for play is encased in a horned frame over an ashen Inferno-themed abstract background. Hacksaw’s signature minimalist yet atmospheric style is in full effect here, offering a haunting but immersive environment. Another game from Hacksaw Gaming, Pray for Three, continues this theme, letting players explore a darker setting with similarly eerie visuals.

Base Game Overview

SixSixSix Slot plays out on a 5x4 grid and offers 14 fixed paylines. With an RTP of 96.00%, and bet options ranging from $0.10 to $100, the game caters to every player. Winning combinations are formed by landing three or more matching symbols from left to right. Symbols range from crossed bones and axes to high-paying icons like demonic skulls and the classic metal “rock on” hand sign. If cascading reels are more your style, you can try Evil Eyes that has a similar theme from the same provider.

The base game revolves around trying to land ‘6’ symbols on the reels to trigger special features. These numbers don’t just represent evil—they’re your ticket to bonus rounds and huge wins, and you can try the SixSixSix demo if you’re unsure about financial commitment right away.

Special Features

The main bonus round in the game is called Wicked Wheel. To trigger it, players need to land a blue or red ‘6’ symbol on the reels. Blue Wheels show up during the base game, while Red Wheels are more potent and mostly reserved for bonus rounds.

There are two kinds of multipliers in this game: Adding Multipliers and Multiplying Multipliers. Adding Multipliers give a boost to wins which range from 5x to 500x. Multiplying Multipliers, on the other hand, increase existing multipliers, and when several of these come into play at once, wins can be enormous.

Land multiple ‘6’ symbols to activate several wheels at once—values are collected left to right, increasing potential payouts.

Free Spins Modes

There are three escalating Free Spin modes, each unlocked by landing more ‘6’ symbols across Wicked Wheels:

• Speak Of The Devil (1 ‘6’): Grants 10 Free Spins with an increased chance of Blue and Red Wicked Wheels. Blue wheels do not carry ‘6’ symbols here.
• Let Hell Break Loose! (2 ‘6’s): Also grants 10 Free Spins, but now with only Red Wicked Wheels appearing for bigger prizes.
• What The Hell (3 ‘6’s): The ultimate bonus mode. You receive 10 Free Spins, and a Red Wicked Wheel lands on every spin, providing relentless high-value action. No Blue Wheels are present.

Each mode turns up the heat, with better multipliers and more opportunities for monstrous wins as you go deeper into the inferno.

Gamble Feature

One of the standout innovations in the SixSixSix Slot is the Deal with the Devil gamble. After triggering either Speak Of The Devil or Let Hell Break Loose!, you’re given a choice: take your 10 spins or gamble for a chance at more spins, or even an upgrade to the next bonus level.

The Deal Wheel can land on 5, 8, 12, 16, 20 spins, or a '6' symbol. Landing the '6' upgrades your bonus—Speak Of The Devil upgrades to Let Hell Break Loose!, and that can in turn upgrade to What The Hell. Importantly, you can’t downgrade, which makes the gamble less punishing than similar features in other games, and you can play SixSixSix demo mode to figure out if this gamble feature is worth using in real money play.

Bonus Buy Options

For those who want instant access to the chaos, four Bonus Buy options are available.

Notably, What The Hell cannot be bought—you must earn your way there via luck or a successful Deal with the Devil.

Pros and Cons

Pros

• Unique Hell-focused theme
• Innovative "Deal with the Devil" gamble mechanic
• Three distinct and escalating free spins modes
• Extremely high win potential (up to 16,666x)
• Broad bet range from $0.10 to $100

Cons

• No wild symbols to aid wins
• Highly volatile—dry spells can be brutal
• Limited appeal to players not fond of dark themes
• What The Hell bonus is hard to reach and not buyable

Final Verdict

The SixSixSix slot perfectly embodies the bold approach of Hacksaw Gaming. They kept the theme quite hellish while being innovative in design with such features as Wicked Wheels and Deal with the Devil. High volatility and the lack of wilds make for a tough grind at times, but those who stick it out could be handsomely rewarded.

In a genre filled with lookalike slots, SixSixSix stands out as a memorably sinister journey through a demonic underworld, offering equal parts punishment and potential. For players looking for something a little darker—and a lot riskier—slots like SixSixSix and Rotten are worth considering.