Thor Infinity Reels: Slot Overview

In ReelPlay’s Odin Infinity Reels Megaways, the spotlight fell firmly on the one-eyed All-Father Odin. This time, anyone who can’t get enough of “infinite” gameplay gets to see his son take centre stage. Aiming to broaden ReelPlay’s reach, Thor Infinity Reels arrives through Yggdrasil’s Masters Program and also taps into GATI technology, a software development company based in India. If you missed ReelPlay’s Odin title, it famously crammed Megaways onto Infinity Reels, showing that BTG’s hit engine can turn up anywhere. Here, the focus shifts to a more classic streak respins-style bonus.

Thor Infinity Reels opens on a harsh, intimidating setting. At the centre is a 3×4 sized grid set into a heavy stone frame that feels immovable. Around it lie abandoned swords, with mist, pine trees, mountains, and a star-filled night sky completing the backdrop. The visuals are striking and create a scene that feels not just icy, but bleak—like Thor has just finished tearing through giants, or an army that managed to anger the god. Whatever went down, it clearly wasn’t gentle.

The numbers keep that pressure up, delivering highly volatile play and an RTP of 96.2%. Note that this is the standard default setting, increasing to 96.6% when the bonus buy is switched on. Thor Infinity Reels runs on any device and supports stakes from 20 p/c to $/€40 per spin, though on mobile you sacrifice a lot of the scenery because the grid takes priority on-screen, pushing the rest of the artwork into the background.

One thing ReelPlay consistently does well is detailed game sheets. They don’t just cover nearly every stat you could ask for; they also include some great artwork. Along with early concept sketches, we also get a hit rate of 1 in 3.64 spins, which is fairly solid considering wins are what activate Infinity Reels’ main behaviour, and they’re made by five matching symbols landing on adjacent reels.

Symbol-wise, there are ten standard pays plus a scatter and wild. The lower end is handled by brawny J-A card royals, while premium icons include horns, shields, helmets, and axes—each premium symbol paying 0.15 to 0.25 times the stake. Put more plainly, five-of-a-kind premium hits return 0.75 to 2.5x the stake. Those base figures may not sound huge, but once Infinity Reels gets rolling, payouts can grow quickly.

Thor Infinity Reels: Slot Features

At the heart of everything is the Infinity Reels mechanic, which expands the grid and boosts symbol multipliers whenever wins land. Winning spins add a reel to the right side of the grid, and if the newly added symbols can upgrade the win, the sequence is repeated. True to the name, reels keep being added until no fresh winning symbols appear.

On top of that, every additional reel increases the symbol win multiplier. The multiplier starts at x1 and rises by +1 with each reel added—there’s no defined cap. When it’s time to pay, symbol wins are multiplied by the current symbol multiplier. Another incentive to keep the reels growing is the Infinity Bonus. If 12 reels are added during a spin sequence, you receive an extra 888x jackpot.

Thor wouldn’t be Thor without Mjolnir making an appearance, and in Thor Infinity Reels the hammer acts as the scatter. If 6 or more Mjolnirs are visible at the end of a spin sequence, they activate Jackpot Respins. The game then moves into hold-and-win mode, locking the grid at its triggering size. The hammer symbols that triggered the feature are also held, and each one shows a prize of 1x to 100x the bet. Alongside standard hammers, you can also hit 4 jackpot scatters, coloured green, blue, red, or gold, paying 10x, 50x, 250x, or 2,000x the bet.

In this mode, the round begins with 3 respins, and the counter resets whenever additional hammer symbols land. If the reels fill up, another reel is added on the right Money Train 2 style. This lets you collect even more prize symbols and, with the right run, potentially land the Infinity Bonus too.

In theory, Jackpot Respins arrive once every 166.09 spins, though players can potentially jump straight in via the feature buy. Choosing it and paying 100x the total stake generates a triggering spin that’s 6 to 15 reels long, with 7 to 24 scatters already in place to begin Jackpot Respins.

Thor Infinity Reels: Slot Verdict

So far, combining Infinity Reels with familiar formats—or even Norse mythology—has produced a couple of worthwhile releases. Book of Ultimate Infinity from SG Digital, for instance, smartly blended ‘Book of’ expanding symbols into the concept, and the streak respin approach used here turns out to be more effective than you might expect. The way the feature triggers is tidy too, with the reels spreading out to create room for as many hammer symbols as possible. Keeping the option to add new reels (and potentially activate the Infinity Bonus) during the feature strengthens the overall package, and the four jackpots add extra appeal.

That said, a lot depends on your opinion of hold-and-win gameplay, which can be a deal-breaker for players who’d rather see classic free spins or something more inventive. Even so, Thor Infinity Reels demonstrates that anything achievable on standard reels can be recreated on Infinity Reels. It can also deliver satisfying returns, with wins topping out at 6,055 times the bet. That’s a respectable ceiling, though it’s difficult not to wonder if it could have been higher considering how often the game leans on the idea of “infinity”. Still, it’s a solid maximum for this type of feature.

Thor Infinity Reels is another example of how flexible ReelPlay’s mechanic can be, even if the underlying gameplay formula stays familiar. Hold & wins are a bit of a throwback, so anyone wanting to see that style in a modernised setup should give it a spin. But if streak respins aren’t your thing, or the upside doesn’t feel compelling, you may be better off trying one of the countless other Thor slots available.