It’s time for a succulent selection of sumptuous slots from the biggest developers in the world. We’ve picked out the best new online slots of the week to show you what’s really hot this autumn. We can’t guarantee you’ll hit the jackpot but you’ll certainly have fun trying.

We begin our journey into the best new online slots of the week with Gargantoonz from Play’n GO. It’s another space-themed slot that offers a helluva lot of wild action for players across the universe.

We’re on our way to ancient Egypt next with Book of Cleo from Tom Horn Gaming. Free spins and expanding symbols await in a sumptuous slot.

Reevo revisits a literary classic next in Miceketeers: The Cheese Guardian. It’s a five-reel slot where colossal symbols can mean the difference between losing lines and mega moolah.

We end our usual look at the best new online slots of the week with Candy Jar Clusters. It’s a sugar-pop treat where you can fill the wild jars or unleash a prize jackpot for huge sweet treats!

Don’t forget: you can play all the best new online slots of the week for free right here. Give the slots a spin through your desktop or mobile browser today.

Gargantoonz by Play’n GO

Take to outer space with Gargantoonz, the brand-new online slot from Play’n GO. Trigger random wilds or charge up the charger and unleash the Gargantoonz wild for mega wins!

Fans of Gigantoonz are going to love Play’n GO’s newest online slot. Gargantoonz dials up the action to 11 with fully evolved wild symbols and a bunch of exciting new features.

You win a payout by landing groups of five or more matching symbols. The symbols must be touching horizontally and/or vertically to count. You hit the jackpot if you match 18+ identical aliens in a valid cluster.

Winning clusters charge up the charger to the right of the reels. You trigger the charger if the counter reaches 20 without being reset. An experiment is picked at random and applied. Plus, unique wilds are added to the reels during this phase.

The experiments include a Gamma Ray Burst (7–9 wilds are added to the reels), Black Hole (4–6 wilds are added to the reels and trigger symbols that will charge up the charger), or Super Nova with shifting wilds.

In addition, every time you trigger an experiment you will evolve the Gargantoon Charger. A multiplier is added to the charger and will keep being added every time you activate an experiment. You unleash a giant Gargantoon wild symbols once you complete all wild experiments.

Garantoonz isn’t all about feature triggers, however: you may also activate one or two random bonuses during the main game. These include having 4–8 Quantum Wilds added to the screen on a non-winning spin.

Gigantoonz was one of our favorite Play’n GO slots, but Gargantoonz is a definite step up. Give it a play for free and see if you agree.

Book of Cleo by Tom Horn Gaming

Unearth free spins with expanding symbols in Tom Horn Gaming’s new slot, Book of Cleo. Trigger the Shatter Mode for extra wins, or hit free spins with expanding symbols.  

Tom Horn Gaming’s slots showcase continues to grow with the addition of Book of Cleo. It’s a beautiful-looking game from the makers of Midas Dynasty and Book of Aladdin that borrows some elements of both games: 9 paylines, magic symbols, and stacked icons throughout.

In Book of Cleo, you trigger the SHATTER mode whenever you hit a new winning combination on the screen. You activate a progressive multiplier with each successive win that moves from 1x to 2x, and so on. Once the multiplier reaches 4x, the SHATTER mode ends.

The game features a free spins bonus which you trigger by landing three book scatters at the same time. You win 10 free games to start with, and the progressive multiplier comes into play. The bonus always starts with a multiplier of 1x.

Book of Cleo isn’t a huge departure from previous Tom Horn Gaming slots, but it still offers some decent bonus thrills for a 9-line slot. Give it a spin for free today and see what you think.

Miceketeers: The Cheese Guardian by Reevo

It’s all mice for one, and all for one mouse in Reevo’s brand-new slot, Miceketeers: The Cheese Guardian. Trigger free spins with colossal symbols and be the big cheese in one of Reevo’s best new games.

Alexandre Dumas’s timeless tale of swashbuckling musketeers is retold in animal form in Reevo’s new game, Miceketeers: The Cheese Guardian. If classic literature and small, furry rodents are your bag, you’re bound to love this slot. 1980s babies may also spot an affinity with the classic animated series from that decade, Dogtanian and the Three Muskehounds.

Colossal symbols are the name of the game in Miceketeers: The Cheese Guardian. The various characters can appear as large 2×2 or 3×3 symbols at any time. Best of all, the colossal symbols are guaranteed to appear during the game’s free spins bonus.  Plus, wild symbols appear stacked during the game. They replace all symbols other than scatters.

You activate up to seven free spins by landing a colossal scatter on reels 2, 3, and 4. It only needs to land partially on the screen to trigger the feature. You win the maximum number of spins if you cover three rows with a scatter.

Slots with colossal symbols have a lot of potential. True, they can be highly volatile, but there are also plenty of opportunities to score big payouts.

The graphics and overall theme are the things that really make Miceketeers: The Cheese Guardian. All that’s missing is a Cardinal Richelieu fight bonus with prize payouts every time one of the miceketeers defeats the evil bad guy. Why not give the game a spin for free today and see what you think?

Candy Jar Clusters by Pragmatic Play

Collect the candies and unlock jackpots in Pragmatic Play’s new online slot: Candy Jar Clusters. There are some tasty treats in store in this cure 7×7 slot.  

Pragmatic Play continues to revisit the cluster wins slots mechanic, this time with Candy Jar Clusters. Not only can you hit the jackpot by filling a screen with matching symbols but you can also trigger free spins or one of four fixed jackpots.

Candy Jar Clusters is a 7×7 slot that is positively brimming with donuts, blancmanges, and macaroons. You win cash by matching six or more symbols in horizontal and vertical clusters. There’s a jackpot for hitting 49 identical symbols at the same time across the screen.

The tumble feature means that all winning combinations disappear from the screen. The remaining symbols drop to the bottom, and empty reel positions are filled with new symbols. Tumbles can continue until there are no more winning combinations.

Red, yellow, and green candies appear during the base game. This is where the modifiers come into play. Yellow candies get collected in a jar and may trigger free spins with wilds. Red candies activate retriggers, while the green candies trigger free spins with jackpots. You must fill a jar for that modifier to be activated.

We’ve just enough room to squeeze in the jackpots. When you activate the jackpot modifier, you can trigger one of five jackpots by collecting the right symbols. The best-paying GRAND jackpot pays out 2000x stake if you fill the right meter.

Ready for some volatile slots thrills? Give Candy Jar Clusters a play today. We have a free-play version for you right here.

For more exciting games, make sure you visit our New Online Slots page!