Week 33 New Online Casino Games August 2025 – 28 New Releases

Another hectic week of game releases has brought us 28 new online slots, some featuring exciting new reel mechanics, others being sequels to popular originals, and others delivering massive big wins. You can learn about all of them in our Week 33 New Online Casino Games August 2025 update, including 13th Trial Hercules Abyssways, which is debuting a new reel modifier mechanic from Play’n Go, and a new Hold & Win fixed jackpot game from BGaming called Grand Mustang.

Age Limits: Players are required to meet the legal age requirements in their region. While 18 is common in many areas, certain jurisdictions mandate an older minimum age.

Top Five Slots & Pokies 12 to 18 August 2025

(Rated by the Casinoplusbonus EN team)

The Casinoplusbonus team has a great time checking out all the week’s new releases as they’ve been launched, and we’ve all put in our votes to determine which should make our top five. You’ll find mini-reviews of each title below, highlighting the slot’s specifications and bonus features.

We should also give a mention to a few of the other top slots that, on another week, could have made the cut. Those are:

• Fire Pig (Push Gaming)
• Bellmania (Swintt)
• Blades of Rome (PopiPlay)

Previous week’s new releases: You’ll never have to wait long for more new slots to come off the conveyor belts of their respective studios, but if you want some more titles to play right now – check out the 25 we reported on in our Week 32 New Online Casino Games August update.

13th Trial Hercules Abyssways™ (Play’n GO)

13th Trial Hercules Abyssways is a 6-reel, 4,096 ways-to-win slot set against the grandeur of Mount Olympus. What makes this game special is the brand new Play’n GO trademarked Abyssways Reel Mechanic, which we covered in our gambling news last week. The game combines expanding wilds, dynamic reel modifiers, and a free spins mode loaded with reel upgrades via Abyssways™. It essentially delivers a godly mix of base game triggers and feature-packed bonus rounds. With this in hand, you can win up to 60,000x your bet.

Game Features Explained

• Wild Symbols: Two types of Wilds that appear on reels 2, 3, 4 and 5. Both substitute for all symbols except Scatters.

• • Normal Wild
  • Expanding Wild that covers all positions on the reels when it lands

• Will of Zeus Feature: Triggered when 2 or more Wilds land in a single spin. During this feature, any Wild that’s part of a win can transform into an Expanding Wild, with the probability increasing based on the total number of Wilds in view. Expanding Wilds cover an entire reel, boosting the chance of multi-way wins. Visual thunder effects evolve as Wilds land, though these are purely cosmetic. Wilds are not available during free spins.

• Scatter & Free Spins: Landing 3, 4, 5, or 6 scatter symbols triggers 10, 15, 20, or 25 Free Spins, respectively. Scatters can appear on any reel, and each one landed during Free Spins adds +1 spin to the total.

• Hercules Pays Anywhere: In free spins, Hercules becomes sticky, and a Pay Anywhere symbol combination. At the same time, the Pegasus symbol will move all Hercules symbols up one step, which will lead to additional combination wins if there are already 2 or more Hercules symbols on the reel. You can see the pay table below for more info.

• Hera’s Wrath – AbyssWays™: At the start of each free spin, a random number of symbols at the bottom of the reels are burned away, then removed at the end of the spin, reducing reel height. After each spin, a new row is added to the top, restoring the reel size. This can trigger shifting reel patterns, giving you extra symbol combination wins. Also, with the additional free spins added by the scatter, you can land up to 50 during this bonus.

• Pegasus Symbol: Pegasus appears during the free spins bonus and moves all Hercules symbols 1 position upward before burned symbols are removed. If fewer than 3 Hercules symbols are present, Pegasus will add more until there are 3.

The base game offers expanding wilds and symbol combination wins for just 2 on the reels, plus its 4,096 ways to win and no payline reel mechanic make it a well-rounded online slot and pokie game that provides all-around entertainment. However, it’s the free spins where big wins lie in wait. The mix of sticky Hercules symbols, Pegasus boosts, and Hera’s Wrath AbyssWays™ creates shifting reels that are not as manic as you might think. Win patterns slowly change, and wins build up spin after spin. Plus, you may land 10 free spins, but it always ends up more thanks to the scatter +1 free spin modifier.

13th Trial Hercules Abyssways Free Play Demo

Tomb of Mystery (Stakelogic)

Set in the heart of Egypt’s sun-scorched desert, Tomb of Mystery follows an intrepid archaeologist into a long-forgotten burial site, where treasure and ancient curses lurk in equal measure. The backdrop of dusty ruins and ominous shadows frames a game packed with unpredictable features, most notably a mischievous mummy that loves to disrupt the reels. With 20 paylines across a 5×4 layout and a max win of 2,000x, the slot balances steady base game play with layered bonus mechanics designed to keep you on edge.

Game Features Explained

• Wild Symbols: Wilds substitute for all symbols except Scatter and Coin. The wild also pays out 4x, 8x or 40x for combinations of 3, 4 or 5 symbols on any of the paylines.

• Coin Collection & Wild Reel Feature: Above each reel sits a Coin Meter, which can hold up to two coins. Land two coins on a single reel to trigger the Wild Reel Feature, turning that entire reel into a 1×4 Expanding Wild for the next two paid spins. Meters persist between spins and reset only for the reel that triggers the feature.

• Mummy Mayhem Feature: Triggering randomly in both base game and Free Spins, the mummy appears to drop 2–4 coins into random meters, potentially activating multiple Wild Reels at once.

• Free Spins & Mini Game: Three Scatter symbols on reels 1, 3, and 5 launch a Mini Game, where each reel spins independently to award coins and additional free spins (+1, +2, or +3). The resulting tally sets your starting coin positions and spin count. During free spins, the coin collection feature remains active, with collected coins only valid for the feature’s duration. Retriggers are possible, and any Wild Reel still active on the final spin awards extra spins to complete its full two-spin run.

• Super Stake: For 0.5x your base bet, Super Stake doubles the chance of triggering Free Spins by adding more bonus symbols to the reels, without altering paytable values.

• Buy Bonus: Skip straight to Free Spins for 100x your bet, with an RTP of 95.98%.

Tomb of Mystery is ideal for players who enjoy a mix of progressive reel features and high-interaction bonuses. The Coin Meter mechanic keeps base game spins engaging, while the Mini Game adds a strategic layer to Free Spins. The random Mummy Mayhem can inject sudden bursts of action, particularly when it triggers multiple Wild Reels. While the 2,000x win cap may feel modest compared to high-volatility slots, the game’s pacing, feature variety, and choice between Super Stake or Buy Bonus options make it a strong pick for players who like a dynamic, feature-driven experience.

Tomb of Mystery Free Play Demo

Wild Beans (Quickspin)

Wild Beans is a 4-row, 5-reel slot with 26 paylines, set in a playful candy land backdrop where mischievous, bean-shaped characters bring chaos to the reels. The game stands out with its six unique Wild Bean Features and a Pick’N’Choose Free Spins mechanic, giving you control over which bonus variation to play.

Games Features Explained

• Wild Symbol: The golden bean is the Wild symbol and substitutes for all symbols except the Bonus symbol and can land on any reel.

• Bonus Symbol & Free Spins: Landing 3, 4, or 5 Bonus symbols triggers 10, 12, or 15 free spins. During the feature, every extra Bonus symbol adds +1 spin. Prior to the round kicking into action, you can choose from one of three free spins modes.

• • Loot Quest: Only Multiplier Wild, Cash Wild, and Random Wild appear.
  • Smash Crew: Only Tall Wild, Diagonal Wild, and Big Wild appear.
  • King’s Castle: All six Wild Bean features can land.

• Wild Bean Features: Randomly triggered on any spin in the base game or free spins. In the base game, only one can appear at a time; in free spins, up to three can trigger together.

• • Multiplier Wild: Adds a 2x–100x multiplier to line wins, it’s part of. Multipliers add together if more than one is involved.
  • Cash Wild: Awards an instant payout (1x–100x bet) in addition to normal wins.
  • Tall Wild: Covers an entire reel with wilds.
  • Diagonal Wild: Creates a diagonal line of wilds.
  • Big Wild: Fills a 2×2 block with wilds.
  • Random Wild: Places 4–6 wilds randomly on the reels.

• Extra Bet: Pay 1.4x your stake for a boosted chance of triggering Wild Bean features (only available in the base game).

• Buy Feature: It’s 50x your bet to buy the free spins bonus Free Spins mode with 3+ Bonus symbols or 100x your bet to buy entry directly into King’s Castle Free Spins.

Players looking for a high-action slot with layered wild mechanics will find Wild Beans a strong pick, especially if they enjoy tailoring their free spins mode to match their play style. While the base game’s random wilds keep things moving, the bigger win potential lies in triggering multiple Wild Bean features in free spins, especially in King’s Castle mode, where all six modifiers are in play.

Wild Beans Free Play Demo

Grand Mustang (BGaming)

BGaming’s Grand Mustang gallops into play with a 5×3 reel setup, 25 paylines, and a Wild West backdrop built around Mustang icons, golden coins, and high-paying symbols. This high-volatility release packs a 96.14% RTP, max win of x5,624, and bonus rounds centred on Free Spins, Gold Respins, and a Grand Jackpot worth x5,000 your bet.

Game Features Explained

• Wild Symbol: Substitutes for all symbols except Scatters and Coins. Pays 1x, 4x, or 20x your bet for 3, 4, or 5 Wilds in a line.

• Scatter Multiplier: It gets its own bullet point for a mere 1x payout if you land all three at once. Still, its a scatter multiplier, so I though why not include it.

• Free Spins: Scatters land on reels 1, 3, and 5. Three Scatters trigger 10 Free Spins, with retriggers possible for another 10 spins. Free Spins and Gold Respins cannot trigger together.

• Gold Respin Feature: Activated by 6 or more Coin symbols. Starts with 6 respins where only Coins, Collect symbols, and Plus Spins appear. Each time a new coin symbol lands and sticks, it will remain until the end.

• • Coin Values: x1 to x20 your bet.
  • Collect Symbol: Adds all visible Coin values.
  • Plus Spin Symbol: Adds +1 respin per symbol.

• Grand Jackpot: Unlike most respin slots with a fixed jackpot, where there are three or four fixed jackpots, there is one up for grabs on Grand Mustang. Land Coins on all 15 positions during a Gold Respin to win x5,000 your bet plus any Coin values.

• Buy Feature: You can skip straight to the action with two purchase options:

• • Buy Free Spins: Enter the Free Spins round instantly for 50x your bet.
  • Buy Respins: Trigger the Gold Respin feature immediately for 40x your bet.

With its mix of retriggerable Free Spins, Coin Collect mechanics, and two Buy Bonus options, Grand Mustang caters to players who prefer direct access to high-stakes bonus action. The Western theme ties the features together, while the big top-end multiplier keeps the chase rewarding.

Grand Mustang Free Play Demo

Spellmaster (Pragmatic Play)

Spellmaster transports you into a wizard’s chamber, where enchanted owls, potions, and spell books fill the reels. The game runs across 46 paylines and packs a Respins feature tied to three powerful Bonus Orbs. Each Orb carries its own modifier, with jackpots, multipliers, or boosted coin values in play. High volatility and a maximum payout of 40,000x your bet mean most of the weight rests on these bonus rounds.

Game Features Explained

• Wild Symbol: The wizard is the Wild, landing only on reels 2–5. He substitutes for all standard symbols, but not Bonus Orbs or Money symbols.

• Bonus Orbs & Modifiers: There are several modifiers on the reels.

• • Golden Orb (Jackpots): Collected into the Jackpots stash. Can trigger Respins with jackpot prizes. Collect three of the same to win Mini (12.5x), Minor (30x), Major (125x), Mega (1000x), or Grand (1875x).
  • Red Orb (Multiply): Collected into the Multiply stash. During Respins, up to 10 Money symbols can be randomly multiplied by 2x–10x. Each Money symbol can be boosted up to four times.
  • Blue Orb (Charge): Collected into the Charge stash. During Respins, it enhances Money symbol values with random amounts up to 25x.

At the end of any spin, collected Orbs may activate Respins with one, two, or all three modifiers combined.

• Respins: The Respins feature begins with 3 respins, where only Money symbols and Orbs can land. Each time a new symbol appears, the counter resets back to 3, keeping the round alive. The feature continues until no spins remain or the entire grid is filled. If all positions are covered with Money symbols, a direct payout of 40,000x the bet is awarded instantly; otherwise, the total of all Money symbol values on the screen is added together and paid.

• Buy Respins: You can purchase entry to Respins for 50x your total bet, guaranteeing at least one modifier.

Spellmaster is built around its Orb-powered Respins, with jackpots, multipliers, and boosted coin values all feeding into the feature. The base game offers steady paylines, but the big attraction is the modifier mix during Respins. With a maximum payout of 40,000x your bet and buy-in access to the feature, this is a slot aimed squarely at players chasing high-end bonus rounds.

Spellmaster Free Play Demo