Oxygen

Oxygen by ELK Studios takes players deep beneath the ocean's surface into an underwater world teeming with vibrant marine life and hidden treasures. Set in the depths of Coral Creek, this slot features a 6-reel, 7-row layout and utilises a cluster pays system, where wins are formed by connecting matching symbols horizontally or vertically. 

The reels are adorned with glowing aquatic creatures, oxygen bubbles, and intricate sea plants, enhanced by smooth animations and an ambient underwater soundtrack. Oxygen is designed for seamless play on mobile and desktop devices, providing an immersive and feature-rich slot experience. 

The Oxygen slot’s RTP is 94% and volatility is medium-high. Despite the many features in the game, gameplay is mostly automatic, making it suitable for players with any experience, including first-timers. 

Dive into the Depths 

Begin exploring the depths of the ocean in the Oxygen online slot by setting your stake and pressing the spin button. Bet limits are wide, designed to cater to a wide audience, and like in most online slots, you can change the stake by clicking the coins icon. 

Oxygen uses a cluster payout mechanic that pays whenever five or more identical standard symbols land next to each other in any direction. The octopus in a diver’s mask is the most valuable standard symbol in the game and awards between 1x and 100x. 

Whenever a winning cluster is formed, the Avalanche Feature is triggered. This feature removes winning symbols after they pay out and adds new symbols to fill the gaps. 

Oxygen Features 

The random bonus features found in the Oxygen bubble up the entertainment, turning an ordinary spin into an aquatic adventure. 

Big Symbols 

Big symbols with a size of 2x2, 3x3, or 4x4 can randomly land on the Oxygen slot grid. These symbols increase the possibility of forming winning clusters. 

Oxygen Bubbles and Multiplier Features 

Whenever winning combinations are formed, they leave behind a bubble with a multiplier value. If another winning cluster is formed across a multiplier bubble, its standard payout is boosted by the multiplier value. 

Every subsequent winning cluster doubles the value of the multiplier bubble up to a maximum of 2,048x. 

During the Oxygen base game, bubble multipliers are removed at the end of each round. However, during free spins, they stay in place until the end of the feature. 

In addition, one of three multiplier features may trigger on any spin in both the base and bonus rounds. The Multiplier Strike Feature adds a random number of multipliers across the grid while the Collector Feature collects all multiplier values in values to its position. 

The Oxygen Dealer Feature, meanwhile, can boost multiplier values of two or more bubbles in a V formation whenever a winning cluster is formed in view. 

Wild Symbols 

Like most slot games at our online casino, Oxygen features wild symbols that substitute standard symbols to complete or grow winning clusters. In addition, wilds can also activate one of two special abilities. 

X-Blaster Wilds replaces random payout or wild symbols in the shape of an X. Exploding Wilds remove all payout symbols above and below themselves, also in the shape of an X. 

Oxygen Bonus Game 

Three bonus scatter symbols trigger 10 free drops with persistent multiplier bubbles. This bonus can be retriggered with two or three scatters that activate three or five extra spins respectively. 

Super Bonus Game 

Landing a persistent multiplier feature in addition to three scatters triggers the Super Bonus Game. This bonus also begins with 10 free drops and includes a persistent multiplier feature. Moreover, just like the regular bonus, two scatters add three extra spins while three scatters provide five additional free drops.