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- Slot Title: Oxygen 2
- Software Developer: ELK Studios
- Bonus Buy Slot UK: Yes
- Reels: 6
- Rows: 7
- Paylines: Cluster Pays
- Max Win: 25,000x
- Max Win Chances: 1/74,945
- Average RTP Percentages: 97.60% to 99.30%
- Game Volatility: High (8/10)
- Min/Max Bet: £0.10 to £100
- Min/Max Bonus Buy Bet: £10 – £20,000
- Release Date: March 4th 2025!
Oxygen 2 – Overview
Oxygen 2 is the eagerly awaited sequel to their 2023 hit, Oxygen. ELK Studios have built on the success of the original game which features the popular cluster pays mechanic, they have also kept the reel position multiplier which we know is a fan favourite! Players or Oxygen 2 will be submersed into the ocean once again to enjoy this action packed mysterious slot, below is a detailed review of the slot from us here at EU Wiki.
Theme and Design
The slot series theme follows on in Oxygen 2 with its sea world full of coral, shipwrecks and of course its colourful characters. Set against a underwater world you are submerged into the world of sea creatures and Cluster Pays, its vibrant feel and energetic soundtrack really set the tone for the slot.
Grid Layout and Mechanics
The game features a 6×7 grid where the hugely popular cluster pays feature is fully in action, wins can be formed when you land 5 or more matching symbols either horizontally or vertically. The game has a high RTP rate along side it being highly volatile, partnered alongside its Ante Bet options and ma win of 25,000x the bet Oxygen 2 really does have a lot to offer.
Oxygen 2 Symbols and Payouts
- Low Paying Symbols – Represented by colourful objects such as green, orange and pink shapes.
- High Paying Symbols – Represented by sea creatures.
- Cluster of 5 symbols – Paying 0.1x to 1 increasing to 10x to 100x for clusters of 16+. Special 2×2, 3×3 and 4×4 symbols may appear with multiple boosts.
Oxygen 2 Key Features
- Avalache Feature
- The winning cluster will explode and make way for new symbols that cascade into place. Winning symbols on oxygen bubble positions multiply up to x2,048 and the avalanches continue until no new wins appear.
- Oxygen Bubbles & Multiplier Strike
- Oxygen Bubbles: When a symbol explodes an oxygen bubble appears in its place. Each subsequent win over an oxygen bubble doubles its multiplier starting from x1 and climbing to a maximum of x2,048.
- Multiplier Strike: This feature can randomly activate on any spin adding multipliers to various grid positions.
- Exploding Wilds & Blaster Wilds
- Exploding Wilds: These wilds will explode in X pattern removing symbols within their range and activating surrounding wilds.
- Blaster Wilds: When part of a winning cluster the blaster Wild replaces symbols in an ‘X’ or ‘+’ pattern with wilds.
- Free Spins
- Landing 3 scatter symbols will trigger 10 free spins, all oxygen bubbles and their multipliers will be carried over from the base game.
- Persistence – Oxygen bubbles and the Octopus remain active between spins.
- Upgrades – Landing 4 scatters triggers the Super Bonus gifting an upgraded net feature with guaranteed Jellyfish multipliers before every spin.
- Retriggers – Landing 2 or more scatters during free spins awards additional spins up to +7 for 4 scatters.
- Landing 3 scatter symbols will trigger 10 free spins, all oxygen bubbles and their multipliers will be carried over from the base game.
- X-iter Bonus Buy Options
- Bonus Hunt – 3x the bet: Increases the chance of triggering free spins by 3 times.
- Guaranteed Special Wilds – 10x the bet: Ensures at least 3 special wilds land on the reels.
- Octo Strike – 25x the bet: Guarantees an Octopus feature and a Multiplier Strike.
- Free Spins – 100x the bet: Triggers 10 free spins with an Octopus feature on each spin.
- Super Bonus Spins – 500x the bet: Grants a premium free spins round with a Jellyfish and Octopus active on every spin.

Pros To Oxygen 2
- Exciting multiplier mechanics with oxygen bubbles and strikes
- Huge max win potential of 25,000x the bet!
- Popular slot series appealing to returning players.
- Can be enjoyed EU casinos that accept UK players.
- Good range of bonus buy options appealing to impatient players.
- High volatile slot.
Potential Cons To Oxygen 2
- Base game an feel slow without bonus buy or multipliers.
- Can only be played at non UK casinos.
- Gameplay animations can feel slow disrupting the flow of the game.
- Purchasing the feature can work out to be very costly.
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