| | Dec 2, 2022 |
| | 3oaks |
Rio Gems is a 5-reel, 25-line slot by 3 Oaks Gaming, released in December 2022. The game uses a Rio de Janeiro carnival theme with gem symbols, performer icons, drums, and card ranks across a 5x3 grid. The stated RTP is 95.69%, with high volatility and a bet range from 0.25 to 20.
The main features are the Hold & Win bonus and Free Spins. The bonus round starts when six or more blue or green gem bonus symbols land, awarding three respins. New bonus symbols reset the respin counter, and filled positions can collect MINI, MINOR, MAJOR, and GRAND jackpot values. A Royal Jackpot of up to x10,000 the bet is also shown in the paytable. A Super Bonus Game can trigger with five bonus symbols plus a Super Bonus symbol, increasing the values of collected symbols during the feature.
Players can use the demo version to play for free and practice before playing for real money. The interface includes adjustable stakes, turbo spin, autoplay, and a paytable with symbol values and feature rules. Wild symbols, scatter drums, and the bonus gem set form the core of the game’s mechanics.