Howl-O-Ween by Rival Powered is a 5-reel, 243-ways video slot that blends a dark, atmospheric theme with a variety of engaging features. With an RTP that can reach 96.24%, a betting range of $0.30 to $30.00, and the chance to win up to 20,255x, it caters to both casual players and those seeking bigger risks.
Key highlights include Werewolf Wilds, which substitute for other symbols, and the Full Moon Fury Expanding Wild Re-Spin, triggered by a Wild landing on the center reel. The Howling Riches Hold & Win Bonus offers respins and locked Prize Symbols, where players can collect instant wins or land one of four jackpots: Mini, Minor, Major, or the Grand, worth up to 10,000x. A Bonus Buy option is also available for direct entry into the Hold & Win round.
Balanced volatility, frequent hits, and layered features make Howl-O-Ween a well-rounded slot that delivers both atmosphere and reward.
| Game provider | Rival |
| Game platform |  UNIFIED |
Awaken the beast within for monstrous wins with Howl-O-Ween by Rival Powered! This spooky 5-reel, 243-line video slot combines a chilling theme with a mix of rewarding features.
With a flexible RTP range up to 96.24%, bets from a friendly $0.30 to a bold $30.00, and a staggering maximum win potential of 20,255x, it offers gameplay that balances broad accessibility with high reward potential. The action centers on special mechanics like Werewolf Wilds that substitute for regular symbols and the electrifying Full Moon Fury Expanding Wild Re-Spin, triggered when a Wild appears on reel 3.
You can also unlock the Howling Riches Hold & Win Bonus by landing six Prize Symbols, leading to respins, cash prizes, and even jackpots. Four jackpots are up for grabs: Mini, Minor, Major, and Grand, with the Grand paying up to 10,000x for filling the entire grid.
For those eager to dive straight into the action, a convenient Bonus Buy option provides instant access to the Hold & Win feature. With its strong feature set, variable RTP, and a steady 21.5% hit frequency, Howl-O-Ween delivers an atmospheric slot experience that's as entertaining as it is rewarding.
