Oxygen 2 slot machine was released by ELK Studios in March 2025. In it, users descend to the sea floor and can observe its inhabitants - octopuses, jellyfish, fish. All symbols are interestingly stylized, plus the game is accompanied by pleasant music and fascinating animation. The provider added a lot of bonus features, increasing multipliers and freespins, so that users can not only enjoy spinning the reels, but also the unusual sea world. The game is addictive from the first minutes and, although it requires a lot of time because of the cascading mechanics, the entertainment is worth it.
Type of game | Video slots |
Manufacturer |
![]() |
Theme | Adventure, Treasure, Gold, Luck, Action, Nature, Ocean, Jewels, Money, Fish |
Min bet | 0.20 € |
Max bet | 100 € |
RTP | 94% |
Max multiplication | 25000 : 1 |
Is free test available | Yes |
Mobile version | Yes |
Issue date | March 4, 2025 |
Progressive jackpot | No |
Reels number | 6 |
Wilds | No |
Scatter | No |
Gamble Feature | No |
Volatility | High |
3D slot | Yes |
Respins | No |
Freespins | Yes |
Progressive multipliers | Yes |
Bet line | 0.2 - 100 |
Bonus games | Free Spins, Bonus Game, Super Bonus Round, Cascade Win, X-iter |
Only decent casinos deserve the trust of users. They offer convenient conditions, fast payouts and no altered chances of winning. Running Oxygen 2 slot by ELK Studios at reliable casinos, you can not be afraid of fraud, all data is encrypted and protected.
To get acquainted with the slot machine there is a demo version. It does not require betting money, credits are used. All other features remain unchanged.
In demo mode you can spin the reels without registration, learning the interface and features of the online slot.
Casinoz presents top casinos that operate under license and can guarantee users a safe game. In the rating you can learn about the advantages and disadvantages, evaluate the available bonuses, and read reviews from other gamblers.
The Oxygen 2 online slot has 6 reels with 7 rows each. Such a large field implies the possibility of collecting long chains - 5+ identical symbols touching edges. Such mechanics are called Cluster Pays. The game uses 3 junior and 4 senior kinds of symbols, these are octopuses, fish, snails, etc. Users can expect regular and super freespins, multipliers, special highlighted cells, exploding symbols and purchase bonus of several kinds. The bet per spin can be chosen from 0.2 to 100 euros. The maximum winnings are quite large. It is x25000 of the bet.
Oxygen Bubbles - air bubbles can appear on the field with multipliers. They are activated when a winning combination is hit.
Octopus - triggered when you hit a prize chain. The octopus collects all visible multipliers from the reels and applies them to its prize.
Jellyfish - Jellyfish can select a random number of cells and add a multiplier to them or increase an existing one.
Blaster Wild - replaces all base symbols. Blasts the x-symbols or +-symbols presented in an x-shaped or +-shaped pattern. A random symbol is then selected to be paid for.
Exploding Wild - explodes multiple symbols (two cone-shaped spaces) around it, giving you a better chance of a big win.
Super Exploding Wild - performs the features of the above symbol, but in addition activates all unused bonuses.
Wild Symbol - makes combinations with any standard images on the field.
Big Symbol - can be 2x2, 3x3, 4x4 and fall anywhere on the reels.
Bonus Symbol is a treasure chest that activates free spins.
Cascade Symbols. The symbols that make up a prize combination make room for new symbols. Cascades occur during a single spin, allowing for more payouts.
X-iter. This is an opportunity to buy bonuses of various kinds. Their value is always a bet multiplier. Bonus Hunt - x3, gives three times the chance to activate freespins. Special Wild - x10, at least three special wilds will fall on a spin. Octo Strike - x25, octopus and air bubble features are guaranteed. Bonus Game - x100, the octopus will be present for 10 free spins. Super Bonus Game - x500, octopus and jellyfish will be constantly present on the field during Free Drops.
The free spins round has two types. It can be bought or won. To get Free Drops, you need to stop Bonus symbols on the reel.
Bonus Game. Given for three Bonus symbols. The player gets 10 free spins with a guaranteed octopus feature and the constant presence of multiplier bubbles.
Super Bonus Game. The trigger for launch is the appearance of 4 Scatter symbols. The user is awarded 10 free spins. They are played with the constant presence of an octopus and the appearance of a jellyfish before each fall of signs.
Bonus rounds are not activated very often, so sometimes it is better to take a risk and buy them, trying to win a large sum.
RTP of the online slot is 94%, so you can't count on stable returns.
The volatility of the machine is high, so prizes will be rare but large.
Oxygen 2 | John Hunter and Galileo's Secrets | Crystal Hall | Mega Bars: Big Hit Jackpot King | Spear Of Fire | Turbo Play | |
---|---|---|---|---|---|---|
RTP | 94 % | 96.50 % | 96.20 % | 92.51 % | 93.51 % | 96.10 % |
Volatility | High | High | Very high | Middle | Middle | Middle |
Lines | 10 | 3125 | 10 | 100 | 1 | |
Drums | 6 | 5 | 5 | 5 | 5 | 3 |
Issue date | 4 March 2025 | 10 February 2025 | 13 February 2025 | 3 March 2023 | 28 February 2023 | 15 February 2013 |
Progressive jackpot | ||||||
Scatters | ||||||
Free Spins | ||||||
Respins | ||||||
Progressive multipliers | ||||||
Jokers | ||||||
Max payout | 25000 | 5000 | 50000 | 50000 | 3000 | 300 |
Bonus Games |
Users should not rely on mathematical strategies that involve lowering and raising the stakes. They can only advise on how to act, but do not guarantee a person constant wins.
Gambling on the chosen system, it is necessary to clearly define your financial limits and do not go beyond the bankroll.
Slot machine | RTP | Volatility | Max win | Release date |
---|---|---|---|---|
Blood Lust | 96 % | 2500 | 7 April 2020 | |
Ice Wolf | 96.10 % | High | 2500 | 5 November 2019 |
Wild Seas | 96.10 % | 1000 | 11.01.2017 | |
Poltava | 96.40 % | 200 | 07.2016 | |
Taco Brothers | 96.30 % | 400 |
The Oxygen 2 online slot plunges the user to the sea floor. The game is accompanied by a pleasant light melody and more fun sounds. Bright animation is present during the activation of bonuses - jellyfish floating on the field, octopus moving tentacles, air bubbles burst and illuminated. Watch the process is fascinating, sometimes even forget that there is a game for money.
The first launch of the machine the user is offered a brief introduction to the features. In more detail they can be studied in the menu, there are also presented the rules and symbols are shown. To start the game need:
Select bet size from the available values.
Press the big button to start a spin or "Auto" if you want to play automatically.
Anytime you want to click on the X-iter and choose the appropriate bonus.
The interface of the slot is convenient and simple, users have no questions about the management of the game.
The provider has developed a mobile version of the machine for Android and iPhone devices. It has an optimized gameplay that is more convenient for playing on smartphones. The functionality and controls remain the same, so users can buy bonuses and spin the reels in automatic mode.
The Casinoz editorial team believes that the Oxygen 2 machine is great for long term entertainment. It regularly gives payouts, albeit small, and periodically pleases with large awards. The slot has exciting animation and colorful design, so you can enjoy the beautiful picture.
The rate of return to the player is 94%.
The online slot offers 6 reels in 7 rows.
Players can bet a maximum of 100 euros.
Type of game | Video slots |
Manufacturer |
![]() |
Theme | Adventure, Treasure, Gold, Luck, Action, Nature, Ocean, Jewels, Money, Fish |
Min bet | 0.20 € |
Max bet | 100 € |
RTP | 94% |
Max multiplication | 25000 : 1 |
Is free test available | Yes |
Mobile version | Yes |
Issue date | March 4, 2025 |
Progressive jackpot | No |
Reels number | 6 |
Wilds | No |
Scatter | No |
Gamble Feature | No |
Volatility | High |
3D slot | Yes |
Respins | No |
Freespins | Yes |
Progressive multipliers | Yes |
Bet line | 0.2 - 100 |
Bonus games | Free Spins, Bonus Game, Super Bonus Round, Cascade Win, X-iter |