Howl-O-Ween Hold & Win
Howl-O-Ween by Rival Powered is a 5-reel, 243-line video slot that combines a spooky theme with a mix of rewarding features. With a flexible RTP range up to 96.24%, bets from $0.30 to $30.00, and a maximum win potential of 20,255x, it offers gameplay that balances accessibility with high reward potential.
The action centers on special mechanics such as Werewolf Wilds, which substitute for regular symbols, and the Full Moon Fury Expanding Wild Re-Spin, triggered when a Wild lands on reel 3. Players can also unlock the Howling Riches Hold & Win Bonus by landing six Prize Symbols, leading to respins, cash prizes, and even jackpots. There are four jackpots to choose from: Mini, Minor, Major, and Grand. The Grand pays up to 10,000x for filling the entire grid. For those eager to dive straight into the action, the Bonus Buy option provides instant access to the Hold & Win feature.
With its strong feature set, variable RTP, and steady 21.5% hit frequency, Howl-O-Ween delivers an atmospheric slot experience that’s as entertaining as it is rewarding.
| Game provider | Rival |
| Game platform |  UNIFIED |
Game reviews
Unleash the full moon's fury for monstrous wins in Howl-O-Ween! This video slot awakens the power of the beast with a lineup of electrifying bonus features.
Werewolf Wilds on reels 2 through 5 replace any symbol except the Hold & Win Scatters, boosting your chances for a payout. When a Werewolf Wild lands on the third reel, it triggers the Full Moon Fury Expanding Wild Re-Spin, expanding to cover the entire reel for a free re-spin and bigger opportunities to win.
Land six Prize Symbols to activate the Howling Riches Hold & Win Bonus, locking them in for three re-spins that reset with every new symbol, adding cash or jackpots to your hoard. The game features four in-game jackpots: Mini (15x), Minor (30x), Major (200x), and a Grand prize up to an astonishing 10,000x!
The Grand Jackpot is hit by filling all 15 spots on the grid. For instant action, use the Bonus Buy to jump directly into the Howling Riches Hold & Win Bonus. With a low volatility profile, 243 paylines, and a maximum win of 20,255x, Howl-O-Ween is a high-energy adventure with a 96.24% RTP and a 21.5% hit frequency.
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