Infernus

Infernus: Slot Overview

Infernus is an underworld-themed slot from Backseat Gaming, its Latin name translating roughly to "of the underworld" or "the infernal regions." It's played on a 5x5 grid using a scatter pays structure, where wins are evaluated across the whole board rather than on fixed paylines, and it's built around heavy, high-impact features that don't fire constantly but can reshape the entire board when they do.

Theme & Gameplay Feel

The base game plays out in a smoky, reddish setting, with a starry night sky and visible moon above the ruins framing the reels — a slightly more restrained take on a fiery underworld theme than the name might suggest, delivered through chunky, cartoon-inflected artwork. The paytable includes 10-A royals alongside a fiery cauldron, a crown or ring, a skull and a phoenix as the premium symbols.

How the Wild Blocks Feature Works

Infernus' signature mechanic is Wild Blocks, available both in the base game and inside its two bonus rounds. Wilds land in solid blocks of 2x2, 3x3, 4x4 or 5x5, each displaying between 2 and 5 heads, and every head carries its own multiplier of x2 up to x100. Those individual multipliers are added together to form one combined multiplier applied across the whole Wild block, meaning a single large block landing with strong multiplier values can transform a spin instantly.

What the RTP Means for You

Infernus carries a 96.27% RTP at its highest available setting, a solid figure that sits above the typical market average.

Volatility & Hit Frequency

Rated the maximum 5 out of 5 on Backseat Gaming's high-volatility scale, Infernus pairs that intensity with a hit frequency of 26%, meaning you'll land a paying combination roughly once every four spins on average, with the Wild Blocks feature providing the bulk of the bigger swings.

Max Win Potential & Betting Range

The maximum win reaches 15,000x your stake. Betting runs from 0.10 up to 100 per spin, and two separate bonus rounds are available to buy directly for players who'd rather skip straight to the Wild Blocks action.

Verdict

Infernus delivers a genuinely punchy high-volatility experience built almost entirely around its stacking Wild Blocks mechanic. If board-transforming multiplier swings sound like your kind of thrill, try the free demo at johnessyslots before deciding whether to play with real money.