Oxygen Slot Review

Oxygen's graphics and theme totally immersed me in a gorgeous underwater paradise. ELK Studios beautifully captured the tranquility of the ocean floor with swaying plants, colorful coral formations and fish peacefully swimming by. The transparent reels allow the background animations to shine through, creating a seamless viewing experience. I loved discovering the exotic creatures like seahorses, starfish and angelfish as the reels spun. The diving helmet is intricately detailed and really pops against the softer background. Even the gemstones come alive, encased in detailed fishing nets. With bold blues and greens alongside pops of pink, orange and purple hues, Oxygen is a visual delight!

The sound effects complement the underwater atmosphere, with soft bubbling as the reels cascade after each win. The music has a soothing, aquatic vibe but I did find it slightly repetitive after extended play. I'd love to hear more melodic chimes and strings woven into the soundtrack to evoke the majestic sensation of being deep underwater. The audio intensifies pleasingly when the bonus rounds hit. Overall, pleasant sounds but not the most memorable or varied.

Oxygen's cluster pays gameplay mechanic, played on a 6x7 grid, is super intuitive and engaging. I loved strategizing to form symbol clusters for payouts. The cascading wins as symbols disappear and new ones drop in kept the action lively. Oxygen also throws in unpredictable extras like randomly sized symbols up to 4x4! With three sensational Wilds, innovative multiplier features and two free spin bonuses, gameplay stays fresh and exciting.

While Oxygen's 94% RTP is slightly below average, the promise of winning up to 25,000x my bet kept me motivated. Medium volatility with frequent small cluster wins balanced the risk of betting higher. Multiplier bubbles on winning positions getting up to a whopping 2,048x also added serious reward potential! The 10 free spins in the bonus round could be retriggered unlimited times too. I didn't manage the max win in my plays but reached over 500x my bet thanks to persistent multipliers in the free spins. Definitely rewarding!

While not the most groundbreaking theme, Oxygen stood out to me for putting its own spin on features popularized in slots like Sugar Rush. The multiplier bubbles on winning positions are similar but made unique by Oxygen with extras like the Multiplier Strike. I also loved the innovative Dealer and Collector symbols enhancing multipliers in clever new ways. Adding exploding and blasting wilds into the mix alongside a tiered free spins bonus made Oxygen feel fresh and distinct from its inspirations. A novel underwater adventure!

Across my extensive plays on desktop and mobile, I was immersed into Oxygen's one-of-a-kind underwater kingdom brimming with creative features. With stunning graphics, smooth intuitive gameplay and bonuses like multiplier rich free spins, Oxygen had me hooked. Some sounds could be improved and it's not the most groundbreaking theme. But Oxygen's blend of cascading cluster wins with imaginative Wilds and multipliers adds up to an oxygenating experience that left me feeling refreshed and entertained.