Play Jack Frost's Winter Online

Jack Frost's Winter: PG Soft's Frosty Infinity Reels Slot

Jack Frost's Winter is a festive Infinity Reels slot from Pocket Games Soft (PG Soft), released in December 2020. Rather than the usual fixed grid, it opens on a compact 3-reel, 4-row board and grows outward with every connected win. Wrapped in icy blues, snow-dusted pines and a frozen-pond backdrop, it pairs a cosy winter mood with one of PG Soft's most rewarding engines, where a single strong spin can keep adding reels and stacking multipliers.

How the Infinity Reels Mechanic Works

The defining feature is Infinity Reels. Wins are formed by landing at least five matching symbols on consecutive reels from the leftmost reel rightward. Whenever the rightmost reel is part of a win, a fresh reel is added to the right and the matching symbols are held in place for a re-spin. As long as each new reel keeps the chain alive, the board keeps extending with no fixed limit, so there are no traditional paylines to count, just an ever-growing run of connected reels.

Crucially, every added reel raises a progressive win multiplier by +1. The longer the chain runs, the bigger that multiplier climbs before it is applied to the full sequence, which is how the game builds toward its heaviest payouts.

Wilds, Free Spins and Bonus Symbols

Jack Frost serves as the wild. Wilds land in a 1x1 size and then expand to cover their entire reel, substituting for regular symbols to help extend a chain. Scatters trigger the main event: land three or more and you start the free spins round with 10 spins, plus 2 extra spins for each additional scatter.

Free spins are where the math model really opens up, because the progressive multiplier does not reset between spins. Two exclusive symbols appear only in this round. One awards additional free spins, and the other lifts the multiplier by +1, with no stated ceiling, so a hot run can carry an enormous multiplier across the entire feature.

RTP and Volatility

Jack Frost's Winter runs at a default RTP of 96.7%, which sits comfortably in the standard range for modern online slots. The volatility is high, in keeping with the Infinity Reels format: many spins end quietly, while the upside is concentrated in the rare extended chains and the multiplier-driven free spins. Expect a swingy session rather than a steady drip of small wins.

Maximum Win Potential

The top payout is a substantial 100,000x your stake. Reaching anywhere near that ceiling depends on a very long reel chain combined with a high progressive multiplier, almost always during free spins. It is an outcome few players will ever see, but it sets the ambition of the game and explains why the high-volatility profile feels justified.

Mobile Play and Free Demo

As a PG Soft title built in HTML5, Jack Frost's Winter is designed mobile-first and runs smoothly in a browser on smartphones and tablets as well as on desktop, with the same expanding reels and features on every screen. You can try Jack Frost's Winter for free right here on Slottomat, with no download or sign-up, which is a sensible way to get a feel for how the Infinity Reels chains build before playing for real money.

Looking for more from this studio? Browse the full collection of Pocket Games Soft slots, or try similar PG Soft releases such as Oriental Prosperity, Totem Wonders and Garuda Gems.