Features we found: free spins, bonus buy, multiplier, expanding
Every slot is scored on the same four criteria, using the game's published data: RTP (40%), maximum win potential (25%), bonus features described in our review (30%) and how recent the release is (5%). Our editors can adjust a score after playing the game. Missing data counts as neutral. The score reflects the game's numbers and features, not your chances of winning; slots are games of chance, so please play responsibly.
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Hallowins OverviewHallowins is a Halloween slot from Caleta, released on 15 October 2026. Behind the iron gates of a haunted graveyard, monsters wake up at midnight: Dracula, Frankenstein’s creature, a red devil, a werewolf and a creepy clown, while weeping angel statues and glowing jack-o’-lanterns guard the scene under a full moon. The game plays on 5 reels and 5 rows with 15 paylines. The RTP is 96.06%, the volatility is high, and the maximum win is 15,000x the bet. There are three different free spins rounds – Spider Web, Monster Hunt and Dark Harvest – each with its own trigger symbol, plus expanding VS symbols with multipliers and a Buy Feature for all three bonuses. Theme and GraphicsThe grid stands in a dark frame between two stone angels, one praying and one leaning in sorrow over a grave. Huge carved pumpkins glow in the front, and a big moon lights the bare trees behind the cemetery fence. In the bonus rounds, the sky turns blood red. The Wild is a grinning pumpkin with green flames and the word WILD on it. Symbols and PaytableWins are paid on the 15 lines, on adjacent reels from left to right, starting from the leftmost reel. At a bet of 20, five or more, four and three of a kind pay:
The Wild substitutes for all symbols except the Spider Web, Monster Hunt, Dark Harvest and VS symbols. In our session, three Q symbols on a zig-zag line paid 10 on a 100 bet. VS Symbols and DuelsThe VS symbol is a red box with a crossbow. It expands only when, once expanded, it becomes part of at least one win. It then covers the whole reel and reveals a hunter and a zombie, each with a multiplier. The two fight a duel, and the winner’s multiplier is applied to the reel, which also turns Wild. The multipliers can be 2x, 3x, 4x, 5x, 6x, 7x, 8x, 9x, 10x, 20x, 25x, 50x or 100x. If more than one VS symbol expands, their values are added together and the total is applied to the line wins. If a VS symbol expands on every reel, the whole grid turns Wild. VS symbols appear in the base game and in Monster Hunt. The Three Trigger SymbolsEach bonus has its own scatter-type symbol: a golden badge with a black spider for Spider Web, a red crate with a crossbow and a wooden sign for Monster Hunt, and a blue ghost above a stone plaque for Dark Harvest. They land only in the base game, and you need three of the same kind to start that round. A banner above the reels keeps reminding you of this, with messages such as “x3 trigger the Spider Web bonus”. In our session, all three triggers landed in turn: three Monster Hunt crates, three Spider Web badges and three Dark Harvest ghosts each started their own round. Spider Web BonusThree or more Spider Web symbols in the base game trigger 10 free spins. Every Wild that lands during the round becomes sticky and stays in place until the end of the feature, so the grid fills up spin by spin. On the last spin of our round, a dozen sticky pumpkins covered the reels and one spin paid 970 on a 20 bet. Monster Hunt BonusThree or more Monster Hunt symbols award 10 free spins in which VS symbols appear more often than in the base game. In our round, a VS symbol expanded on the middle reel, the zombie won the duel with an 8x multiplier, and the K symbols around it paid 240. Dark Harvest BonusThree or more Dark Harvest symbols start a two-phase bonus. In the Collect Phase, only Wild and Ghost symbols count: collected Wilds are shown above the reels on the left, and the total multiplier is shown on the right. The phase starts with 3 spins and resets to 3 every time something is collected. You can collect up to 25 Wilds and a multiplier of up to 20x. The Spins Phase follows with 3 spins. On each one, all the collected Wilds land on the grid in random positions, and every win is multiplied by the collected multiplier. We collected 7 Wilds and an 11x multiplier, and during the Spins Phase the total win climbed to 1,232 on a 20 bet – over 60x the bet. Buy FeatureThe Bonus Buy menu lets you buy any of the three bonuses directly. At a bet of 20, Spider Web costs 1,600 (80x), Monster Hunt 4,000 (200x) and Dark Harvest 8,000 (400x). The RTP is 96.05% for Spider Web and Monster Hunt and 96.06% for Dark Harvest. Bonus buys are not available in every casino. Controls and Game SpeedThe bottom bar shows the balance, the bet, the spin button and the win. The bet button opens the stake menu, and the round arrows next to the spin button start Autoplay, which can also reduce the bet on its own if the balance runs low. The game has three speed options – normal, turbo and instant – and the RTP of 96.06% is shown in the top-left corner of the screen at all times. RTP, Volatility and Max WinThe 96.06% RTP is right at the industry average. The high volatility fits the design: the line wins are small on their own, and the big results come from VS multipliers adding up or a Dark Harvest round with many Wilds and a high multiplier. The 15,000x cap applies to the whole game. Who Should Play ItHallowins suits players who like variety in the bonus: three free spins rounds that play very differently, from sticky Wilds to monster duels and a collect-and-spin finale. Try the free demo first to see all three. Where to Play HallowinsYou can try this game on LuckyBar Online Casino. There’s a unique casino bonus offer of 300% up to £1500 for a limited time. Hallowins was listed in two of our six partner casino libraries, SunClub and LuckyBar, when we checked on 21 October 2026. |