Series
Wheel Big Winner series
Wheel Big Winner Series: Genii's changing bonus-wheel formula
The Wheel Big Winner series is Genii's 5x3, 20-payline bonus-wheel franchise, built on a wheel event that redirects rewards beyond ordinary line wins. Its visual themes change, but the fixed screen, bonus symbols, and wheel remain the recognizable mechanical center.
Ranked by Slot Score
| Game | Year | RTP | Volatility | Slot Score |
|---|---|---|---|---|
 Wheel Big WinnerGenii | 2022 | 95.76% | — | 57 |
| 2024 | — | 44 | ||
 Wheel Big Winner Power TowerLatestGenii | 2025 | — | 46 |
Wheel Big Winner established the format in 2022 with free spins, multipliers, and a free-spins multiplier layer. Its 0.2 to 25 bet range is narrower than those of the sequels, and its bonus structure focuses on enhancing spins rather than adding a jackpot ladder.
What stays bolted to the wheel
- Screen: each release uses a 5x3 layout with 20 paylines.
- Bonus language: bonus symbols and a bonus wheel connect the different themes.
- Evolution: the wheel stays central while the surrounding reward route moves through free spins, pick objects, respins, jackpots, and level progression.
Wheel Big Winner Millionaire's Life changed that route in 2024 by adding a pick-object bonus and fixed jackpots, while raising the upper bet to 50. Wheel Big Winner Power Tower followed in 2025 with the same 0.2 to 50 range, then emphasized respins, multipliers, fixed jackpots, and a level-up system.
The progression is mechanical rather than merely visual. The original uses the wheel to support free spins and multipliers, Millionaire's Life branches into selection-based prizes and jackpots, and Power Tower concentrates on respin pressure and climbing levels.