Fat Rats and Stacks Demo Slot by Just Slots Free Play

Fat Rats and Stacks is an online Slot from Just Slots.

Quick Facts

- Provider: Just Slots

- Layout: 5 reels, 3 rows, 243 ways

- RTP: 98.25% (other versions 96.16%, 94.23% and 92.18%)

- Volatility: low

- Max win: 5,000x the bet

- Features: Stacked Symbols, Wilds, Scatter, Free Spins, Bonus Buy, Hot Spins, Hot Reels, Vortex

- Release: 26 November 2026

Get in, grab the cheese, get out

Fat Rats and Stacks is a Just Slots 243-ways slot with a heist theme: three fat rats have a blueprint, full bellies and one cheese vault to crack. Every spin picks one symbol to stack, and that pick stays in place for every Free Spin once the vault opens.

Free Spins and the stacking ways multiplier

The WILD substitutes for every symbol except the SCATTER. Landing 3, 4 or 5 SCATTERs opens the vault for 8, 10 or 12 Free Spins, and inside the stack can carry a ways multiplier of up to 5x, so one symbol can count as five. Two or more SCATTERs during the round bring up to 12 more spins.

Bonus Buy, Hot Spins, Hot Reels and Vortex

Bonus Buy sells the Free Spins, with one option rolling 2 to 5 SCATTERs and needing at least 3. HotSpin raises the stake so only the crew or the WILD comes in stacks, and HotReels sells a single spin that can land up to 5 SCATTERs. Vortex is the gamble: wager on the wheels for a cheaper shot at the bonus, but one failed wheel loses the wager.

Who it suits

A low-volatility rating and a hit frequency of 17% point to a steadier pace, with up to 5,000x on offer. Just Slots lists four RTP settings, so the version depends on the casino.

Click the Play for Free button to load the Fat Rats and Stacks demo, test its features and payouts and decide if it is a game you enjoy.