Locked symbols and bonus multipliers are in abundance for our latest roundup of the best new online slots of the week. We happily receive new slots from Hacksaw Gaming and Octoplay with the biggest new free-play releases.
However, we start our collection with Cluster Gems from Zillion Games. Aim for the 3000x jackpot as you soar to sky-high castles on the hunt for diamonds.
Next, we’re worshipping the Sun Princess in Hacksaw Gaming’s newest slot. Trigger bonus games filled with sun rays and sticky wilds as you chase the 10,000x jackpot.
Mix up the perfect potion in Alchemist Wonders from NowNow Gaming. Trigger cascades from matching scatters and build the magical multipliers worth up to 100x each.
We end the best new online slots of the week with The Greed Machine from Octoplay. Dance with the Devil and take a shot at the Super Free Spins.
As ever, you can try all these hot new slots for free at VegasSlotsOnline. Just click the freeplay links on this page to load any game in your browser.
Cluster Gems by Zillion Games
Hit matching clusters and trigger cascades with progressive multipliers in Cluster Gems. Zillion Games’ newest slot features free spins with multipliers and the explosive Star Bomb feature for enhanced wins.
We start our best new online slots of the week with one of the hottest cluster wins games of the year. Cluster Gems is the newest release from Zillion Games and takes place in a sky-high world of diamonds and rubies.
You win by matching clusters of adjacent symbols. Winning clusters disappear and are replaced by new symbols. Plus, a progressive multiplier is applied to each new winning cluster.
Look out for the Star Bomb feature that can randomly enhance your payout. The symbol explodes, sending multipliers horizontally and vertically in both directions.
You trigger free spins by hitting five scatters anywhere. You can also retrigger the free spins with an additional five scatters in any position.
You’ll love Cluster Gems if you played and enjoyed last month’s Candy Stash Deluxe from Zillion Games. Cluster Gems may not feature the Hold & Win or Boost modifiers, but it’s a solid addition to your Cluster Wins collection. Give it a play for free at VSO and see what you think.
Sun Princess by Hacksaw Gaming
We’re celebrating the summer with Sun Princess from Hacksaw Gaming. Trigger one of three free spins modes in one of the hottest new slots this season.
Hacksaw Gaming takes a departure from its recent hard-edged slots with the release of Sun Princess. It’s a seven-reel slot that worships the sun – just what we need as we enter the Fall (unless you’re reading this on the other side of the world).
You play Sun Princess on a 7×7 grid where winning clusters determine prizes. You receive a payout for matching anywhere from five to 49 symbols on the grid.
Sun Ray frames may land on any symbols before a spin, including wilds. The Sun Ray expands in straight lines, turning all symbols in its path into identical ones. It’s also possible to trigger a four-way Sun Ray that stretches up, down, right, and left.
The progressive free spins bonus is a common feature of many of this year’s slots. In Sun Princess, you trigger ten free spins with additional modifiers if activated with three, four, or five scatters.
You trigger the Hidden Epic bonus by landing five scatters in any position. You start with ten free spins with more chance to trigger Sun Ray frames. Plus, you have added opportunities to trigger sticky wilds and multipliers.
Atmospheric music and sound effects, plus the beautiful Manga graphics add to the appeal of Sun Princess. Throw in trusted Hacksaw Gaming gameplay and you have one of the best new online slots of the week. Try it for today and enjoy some last-minute sun-worshipping.
Alchemist Wonders by NowNow Gaming
Boost your potions in Alchemist Wonders from NowNow Gaming and ignite multipliers for bigger payouts.
Alchemist Wonders is the second of our recent alchemy-themed new slots. It’s fair to say that this slot from NowNow Gaming features just as much bonus action and jackpot potential.
Alchemist Wonders is a six-reel slot that uses a scatter pays mechanic. You must match 8+ symbols anywhere on the reels. The matching symbols disappear, triggering a cascade that allows new symbols to drop into the gaps.
Additionally, a progressive multiplier increases for each new cascade. The alchemist may even throw magical multipliers onto the reels to enhance your prize. Possible multipliers range from 1x to 500x.
You trigger the Potion Boost with 4+ scatters in any position. You win up to 20 free spins, with more available if you hit additional scatters.
Best of all, all magical multipliers are active during the bonus game. Additionally, the Potion Pulse modifier kicks in for multiplier upgrades worth up to 100x.
We’re yet to see such a generous new online slot in 2025 when it comes to multipliers. The speedy graphics and gameplay add to what is already an amazing slot. Why not give Alchemist Wonders a play for free and see what you think?
The Greed Machine by Octoplay
There are Super Free Spins and locked cash bonus symbols aplenty in The Greed Machine from Octoplay. Can you avoid temptation in Octoplay’s hottest slot this year?
We keep things simple for the last of our best new online slots of the week. The Greed Machine is a ten-line slot from Octoplay. The slot has a devilish theme, with cauldrons, skulls, and pitchforks populating the reels.
You can land cash symbols anywhere on the reels during the base game. Up to six coin symbols may appear on the reels during any spin.
You build up coins before the Devil appears and collects the lot. Plus, coins remain locked in place for up to nine spins to give you an extra shot.
Coins range in value from 1x–25x stake. Plus, stronger coins may land on top of weaker ones and upgrade their value. Diamonds double the cash value of any coins displayed on the screen.
You also trigger free spins by hitting three bonus scatters in any position. You win eight free spins, plus an additional four if a pot of gold symbol lands.
The bonus is that during free spins, locked coins or diamonds never count down. They only disappear if the Devil appears during a spin.
Octoplay has already delivered some excellent high-variance slots in 2025. The Greed Machine is easily added to the pile if you want bonus modifiers and locked symbols. Give it a play for free today.
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