Oxygen 2 Slot Review

The Oxygen 2 Slot Game

When I first loaded Oxygen 2, I was dropped straight back onto the ocean bed with that see-through 6-column, 7-row grid hanging in a wrecked steel structure. Wins land via cluster pays, so 5 or more matching symbols connecting horizontally or vertically will pay. Stakes run from 0.20 to 100 per spin, with a high volatility model, 94% RTP and a capped payout of 25,000x the bet.

Visually, Oxygen 2 feels like a darker, sharper version of the first outing, with mutated snails, crabs and fish welded to bits of human junk. The unframed reels sit in the middle, backed by drifting mines and swirling bubbles, while an upbeat electronic track keeps the tempo high. I enjoy how the colourful symbols stand out against the murky background, making big clusters easy to follow during avalanches.

Symbols and Payouts in Oxygen 2

Only seven standard pay symbols appear in Oxygen 2, all tied neatly to the underwater theme. The low-value icons are the green, orange and pink floaty widgets, while the premiums are the warped snail, crab, fish and octopus creatures. Cluster size matters a lot here, as five-of-a-kind pays can be as small as 0.1x the stake, but 16+ symbol clusters reach between 10x and 100x the bet.

For example, clusters of 5 to 16+ octopus symbols pay from 1x up to 100x the bet, while the pink fish tops out at 50x. Crabs max at 30x, snails reach 25x, and the three floaters pay up to 20x, 15x and 10x. Regular wilds can stand in for any payer, and Big Symbols in 2x2, 3x3 or 4x4 size sometimes land with handy multipliers attached.

Symbols and Paytable

Symbol	Quantity	Payout
	16+	x100
	13+	x10
	10+	x5
	8+	x2.5
	6+	x1.5
	5	x1
	16+	x50
	13+	x5
	10+	x3
	8+	x1.5
	6+	x0.75
	5	x0.5
	16+	x30
	13+	x4
	10+	x2.5
	8+	x1.2
	6+	x0.6
	5	x0.4
	16+	x25
	13+	x3.5
	10+	x2
	8+	x1
	6+	x0.4
	5	x0.3
	16+	x20
	13+	x3
	10+	x1.5
	8+	x0.8
	6+	x0.25
	5	x0.2
	16+	x15
	13+	x2.5
	10+	x1.25
	8+	x0.6
	6+	x0.2
	5	x0.15
	16+	x10
	13+	x2
	10+	x1
	8+	x0.5
	6+	x0.15
	5	x0.1

Oxygen 2 Slot Bonus Features

Every round in Oxygen 2 starts with symbols dropping onto the grid; any winning clusters explode and trigger the avalanche mechanic. When a symbol blows up for the first time, its position gains an oxygen bubble with a 1x multiplier. Further explosions on that spot during the same sequence double the value up to 2,048x. Randomly, Multiplier Strike can drop fresh multipliers onto positions, giving the whole screen a dangerous charge.

Jellyfish and Octopus features are where Oxygen 2 starts to feel properly wild. Jellyfish float over a random number of positions, dropping their multiplier as they go; if they hit a spot that already has a value, both numbers combine. The Octopus hides behind one symbol. When that position forms part of a cluster, it drags a selection of bubble multipliers from outside the win straight into the payout.

Special wilds and the bonus rounds tie it all together in Oxygen 2. Exploding Wilds clear cone-shaped areas and can trigger avalanches, with Super Exploding Wilds also waking up any bubbles behind removed symbols. Blaster Wilds reshape symbols in X or plus patterns, often creating fresh clusters. Landing 3 or 4 bonus symbols awards 10 Free Drops or the Super Bonus with persistent bubbles, an Octopus every spin, guaranteed Jellyfish and X-iter options to buy straight in.

Bonus Buy Feature

Bonus Hunt Increase your chance to trigger the bonus game by three times.
Feature Cost:	x3 Bet
RTP:	-
Volatility:	-
Special Wilds Guarantees one spin with at least three Wild symbols.
Feature Cost:	x10 Bet
RTP:	-
Volatility:	-
Octo Strike One spin with guaranteed Octopus and Multiplier Strike.
Feature Cost:	x25 Bet
RTP:	-
Volatility:	-
Bonus Game Free Spins with guaranteed Octopus feature on every spin.
Feature Cost:	x100 Bet
RTP:	-
Volatility:	-
Super Bonus Game Super Free Spins with guaranteed Octopus Feature and Jellyfish Feature on every spin.
Feature Cost:	x500 Bet
RTP:	-
Volatility:	-

How to Win at Oxygen 2 Slot

To get going on Oxygen 2, I usually settle on a stake between 0.20 and a level my bankroll can stomach, then spin or use the autoplay. Wins come from building tight groups of 5+ symbols rather than straight lines, so I focus on how clusters develop during avalanches. For me, the real value lies in positions where bubbles have stacked multipliers, and I only touch X-iter buys when the balance feels healthy.

Oxygen 2 Slot RTP & Volatility

From a numbers angle, Oxygen 2 sticks with a 94% RTP and a high volatility profile, roughly 8 out of 10 on ELK’s scale. Bets span from 0.20 up to 100 per spin, which gives room for both cautious testing and aggressive sessions. The hit frequency feels lower than the first game, but when the oxygen bubbles climb towards their 2,048x caps, the 25,000x max win figure suddenly looks very realistic.

The Final Thoughts on Oxygen 2

As someone who spent plenty of time on the original Oxygen slot, Oxygen 2 feels like a confident return to the same deep trench rather than a wild detour. The core idea of charging up individual positions with bubble multipliers is intact, just sharpened by the Jellyfish, Octopus and special wilds. When those elements line up, the screen feels absolutely loaded, and even medium-sized clusters can explode into serious totals.

The flip side is that the 94% RTP and fierce volatility mean long dry stretches are possible, and the Jellyfish animations can drag a little when they fail to deliver. That said, I rate Oxygen 2 as one of ELK’s stronger cluster slots. If you enjoy building value over several drops and do not mind swings, this underwater sequel has enough oxygen to keep sessions interesting.

Screenshots