Oxygen 2 Slot Review

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Play Oxygen 2 Slot Demo here

  • Slot Title: Oxygen 2
  • Software Developer: ELK Studios
  • Bonus Buy Slot: Yes
  • Reels: 6
  • Rows: 7
  • Paylines: Cluster Pays
  • Max Win: 25,000x
  • Max Win Chances: 1/76,121
  • Average RTP Percentages: 97.60% to 99.60%
  • Game Volatility: High (10/10)
  • Min/Max Bet: £0.20 to £100
  • Min/Max Bonus Buy Bet: £50 – £20,000
  • Release Date: Match 4th, 2025 – Out Soon! 

Oxygen 2 – Overview


Oxygen 2 is the latest slot title from ELK Studios which is set to be released at USA casinos for UK players from the 4th of March, 2025. This is a follow up from the hugely successful Oxygen, the sequel retains the core fundamentals of the first game however it comes with new added features such as Jellyfish Octopus modifiers, exploding wilds and it is also now a slot where you can buy bonus UK, meaning you can buy access directly to the feature. Lets take a look in more detail at everything this game has to offer.

Oxygen 2 Theme and Design

Oxygen 2 takes players into an underwater world filled with vibrant aquatic creatures and the main character being an Octopus, expect to see lighthearted creatures such as a crab wielding a spanner, a snail in a tin can and an octopus in a scuba divers helmet. The soundtrack adds a relaxing tranquil environment. 

Oxygen 2 slot game play

Oxygen 2 Symbols and Payouts

Symbols in Oxygen 2 are divided into low and high value categories:

  • Low Paying Symbols: Green, orange and pink floaty objects will pay 0.1x to 1x for clusters of 5 and up to 10x for 16+ clusters.
  • High-Paying Symbols: Four unique aquatic characters such as crabs, snails and octopus pay 1x to 100x the bet for clusters of 16 or more.
  • Wild Symbols: Wilds Substitute for any pay symbol and award the same payout as the highest paying symbol for a cluster.

Large symbols (2×2, 3×3 or 4×4) can appear with or without multipliers, adding significant win potential to each spin.

Oxygen 2 Slot Features

1. Oxygen Bubbles & Multiplier Strike

  • Oxygen Bubbles: When a symbol EXPLODES, it activates an oxygen bubble on its position with an initial multiplier of x1. Each subsequent explosion on the same position doubles the multiplier up to a maximum of x2,048.
  • Multiplier Strike: Triggers randomly on any spin and leads to the placing of multipliers on random positions on the grid.

2. Jellyfish & Octopus Features

  • Jellyfish Feature: Randomly appears holding multipliers and moves across the grid adding or combining multipliers on its path.
  • Octopus Feature: Sits behind a symbol position and activates when a win occurs on that position. It adds multipliers from nearby symbols to the winning cluster, boosting the total win. The Octopus persists during free spins and moves to new positions on each spin.

3. Exploding Wilds & Blaster Wilds

  • Exploding Wilds: When part of a winning cluster, Exploding Wilds remove symbols in cone-shaped areas and activate other special wilds or oxygen bubbles. The Super Exploding Wild activates all unactivated oxygen bubbles in the affected area.
  • Blaster Wilds: Replace symbols in an ‘X’ or ‘+’ pattern with selected symbols. Overlapping Blaster Wild patterns turn symbols into wilds, creating additional huge winning opportunities.

4. Free Spins

Landing 3 scatter bonus symbols triggers 10 free spins where all oxygen bubbles and their multipliers persist across spins.

  • Super Free Spins: Landing 4 scatter bonuses triggers 10 super free spins, where a Jellyfish feature activates before every spin ensuring multipliers are added to the grid.
  • Retriggers: Landing 2, 3 or 4 scatters during free spins adds +3, +5, or +7 spins.

5. X-iter Bonus Modes

Oxygen 2 offers several bonus buy options for players seeking instant action:

  • Bonus Hunt (3x Bet): Increases the chance of triggering the bonus game by 3x.
  • Wild Strike (10x Bet): Guarantees 3 special wilds on a spin.
  • Octo Strike (25x Bet): Guarantees an Octopus feature and at least one Multiplier Strike.
  • Bonus Buy (100x Bet): Triggers the standard bonus game with an Octopus feature on every spin.
  • Super Bonus Buy (500x Bet): Activates the super bonus game with both the Jellyfish and Octopus features on every free spin.
Oxygen 2 slot bonus feature

Pros To Oxygen 2

  • Unique features like Jellyfish and Octopus modifiers create engaging and dynamic gameplay.
  • Is set to be released at EU casinos that accept UK players and offer huge welcome bonuses.
  • Oxygen bubbles and multipliers persist through free spins, increasing continuous wins.
  • Multipliers can reach a massive x2,048 leading to life changing mega wins.
  • Can be played at casinos that take credit cards if you enjoy using additional banking options.
  • Flexible bonus buy options via X-iter modes providing various costs and volatility.

Potential Cons To Oxygen 2

  • The option to buy the bonus feature is only available at non UKGC casinos.
  • High volatility might not appeal to all players.

What Other Slots Are Highly Recommended?

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About our Author

John Davis

John Davis

Hello. This is John Davis, currently residing in the UK. I graduated from the London School of Economics back in 2006. After completing my Bachelor’s Degree, I then went onto further studies and got a Master’s in Computer Science. Before later earning a Doctorate in Artificial Intelligence. This included picking up top grades in Machine Learning and Data Analysis. During the period of my studies, I was able to spend time collaborating with leading experts, whilst also gaining knowledge and an interest in the Gambling industry. This has since seen me spend extended periods of time working across the online casino industry over the last decade, before now joining the expert team here at the Daily Star.

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