Return to Player
94%
Minimum bet size
0.20
Slot category
Video Slots
Volatility
Low
Reels
6
Progressive jackpot
No
Popularity Rating
Maximum bet size
100
Game Provider
Elk Studios
Bonus features
Yes
Paylines
Cluster Pays
Theme
Under the Sea
Oxygen 2 Online Slot Game
Bright artwork, upbeat music, coral creatures and a generous selection of bonuses set the scene in Oxygen 2. The game takes players to Coral Creek’s deep ridge, where its machine-like inhabitants keep evolving and changing in design. In this underwater world, oxygen is exceptionally valuable, as are the prizes associated with putting these creatures to work. ELK Studios’ Oxygen 2 is described as the provider’s latest foray into an energetic slot world, with plenty for fans of the series to discover.
Oxygen 2 at a Glance: Key Facts About the Slot
- Oxygen 2 has a stated maximum win cap of 25,000x.
- Bonus rounds are available.
- An X-iter bonus buy is included.
- Features include Blaster Wilds, Exploding Wilds and Octopus Multipliers.
Oxygen 2 Slot Graphics and Sound
Oxygen 2 retains the strong design sensibility of the original Oxygen, with no major change to its audiovisual style. Its central grid appears cleaner, brighter, and more colorful, framed by pipes, sand, coral, and water.
The audio avoids some familiar underwater-slot conventions, though its melodies remain pleasant. The beats add momentum, and the sound effects reinforce the marine setting. Darwin might even have been surprised by the evolution of this mechanical sea life.
Top Casinos to Play Oxygen 2:
How to Play the Oxygen 2 Slot Machine
Like its prequel, Oxygen 2 uses a 6x7 grid where individual positions can attach to reels and expand, creating multiplier opportunities. Its Cluster Pays system does not use conventional symbol rows: clusters pay when five or more matching symbols land next to one another on the reels.
Oxygen 2 keeps its visuals focused on the underwater theme. Low-value symbols appear as floating objects in bright pink, orange and green, while higher-value symbols depict menacing mechanical sea creatures such as piranhas and crabs.
A five-of-a-kind cluster can pay up to 1x the bet, while clusters with 16+ symbols offer considerably more potential. With the right symbols, the listed payout can reach 100x the bet. The cheerful presentation comes with the possibility of substantial wins, but no outcome is certain.
| Symbol | 16+ | 13–15 | 10–12 | 8–9 | 6–7 | 5 |
|---|---|---|---|---|---|---|
 | 100x | 10x | 5x | 2.5x | 1.5x | 1x |
 | 50x | 5x | 3x | 1.5x | 0.75x | 0.5x |
 | 30x | 4x | 2.5x | 1.2x | 0.6x | 0.4x |
 | 25x | 3.5x | 2x | 1x | 0.4x | 0.3x |
 | 20x | 3x | 1.5x | 0.8x | 0.25x | 0.2x |
 | 15x | 2.5x | 1.25x | 0.6x | 0.2x | 0.15x |
 | 10x | 2x | 1x | 0.5x | 0.15x | 0.1x |
Wild symbols substitute for all other paying symbols on the grid. An all-wild win can pay as much as a comparable cluster made up of the highest-paying symbol. During a symbol drop, the grid may produce 2x2, 3x3 or 4x4 symbols. They can land anywhere and may carry extra multipliers that boost a winning combination.
Oxygen 2 Slot Demo Version
Oxygen 2 is a brightly designed slot with multipliers and several bonus mechanics. Try the demo before committing funds, especially if you want to understand how the game works before pursuing its stated 25,000x maximum win. Free play lets you learn the layout and features, see how they interact, and consider your bets without risking money. This can help you get familiar with the game, but no strategy guarantees a win. Visit alburaqregina.com to try the demo before deciding whether to play for real money.
Oxygen 2 Slot Bonus Features
ELK Studios has not packed Oxygen 2 with ten or more separate bonus features, but the selection is still substantial. Each mechanic is intended to add variety and opportunities for stronger wins within the game’s rules. The listed Oxygen 2 bonus features are:
Avalanche Feature: After winning symbols pay, they burst and make room for fresh symbols to drop into place. The special wild is the exception: it activates but stays in place until it explodes later. The avalanche continues until a drop produces no more wins.
Oxygen Bubbles: Oxygen bubbles may activate randomly and replace some symbols that have exploded. Each starts with a 1x multiplier, which doubles whenever another symbol explodes in the same position. A bubble’s maximum multiplier is 2,048x. Oxygen 2 also has Multiplier Strike, which activates on random wins and adds a random number of multipliers to the reel.
The Jellyfish Multiplier: A jellyfish may appear carrying multipliers, which it places randomly across the grid. If one multiplier replaces another, its value is added to the existing multiplier.
The Octopus Multiplier: During a spin, a random position is marked with a golden box, with an octopus behind it. If that position forms part of a win, the octopus activates and adds a random number of multipliers to the winning cluster, provided those multipliers are already elsewhere on the grid.
Blaster Wilds: When a Blaster Wild joins a winning cluster, it selects a random paying or wild symbol from the grid. It then changes all paying symbols in an ‘X’ or ‘Plus’ pattern to the selected symbol, potentially creating a larger win.
Exploding Wilds: When an Exploding Wild forms part of a winning cluster, it makes all paying symbols in two cone-shaped areas extending left, right, up and down from the wild explode.
Free Spins: The treasure chest is the scatter symbol; landing at least three awards 10 free spins. Four scatters trigger the Super Bonus Game. Both games can be retriggered, and four scatters during the Bonus Game can upgrade it to the Super Bonus Game.
X-iter: X-iter is the Bonus Buy menu, offering several ways to purchase bonus features and, according to the game information, guarantee certain triggers on the grid. These options may affect feature entry and potential payouts, but they do not guarantee a profit.
Winning Strategies for the Oxygen 2 Slot
Much of Oxygen 2’s action is driven by bonus symbols, so the review characterizes it as a relatively hands-off game. Players can still make deliberate choices when pursuing larger payouts. These suggestions relate to the slot, but no betting system can guarantee profits:
- Compare online casinos carefully: The slot’s RTP is 94%, which the review considers relatively low. It suggests checking for suitable bonus offers where available, such as those at top online casinos. Read the offer terms before accepting a promotion.
- Manage your bankroll carefully: This is described as a high-volatility slot, so larger wins may take time to appear. Spreading your bankroll across multiple bets can help prevent using all your funds in the first few spins.
Oxygen 2 Technical Details
Oxygen 2 is a 6x7 slot with a 94% RTP and high volatility. Bets range from 0.20 to 100, and the stated maximum win is 25,000x. Cluster Pays keeps the format simple, with winning combinations able to pay in any direction.
Best Alternatives to the Oxygen 2 Slot
After exploring Coral Creek, players can find other underwater adventures. These two alternatives may appeal to anyone looking for a similar ocean setting:
- Bigger Bass Splash: This popular Pragmatic Play title has an RTP of 96.5%, high volatility and a maximum win of 5,000x. The review ranks it among the stronger ocean-themed slots.
- Muddy Waters: Muddy Waters takes players into polluted waters, where discarded objects may hide treasure. This Peter & Sons slot has a 96.49% RTP and a 20,000x maximum win.
Our Verdict
Oxygen 2 is presented as an active slot with a broad selection of bonus features to keep the pace moving. Its potential wins add interest, although the main criticism is that its presentation and bonus design do not depart substantially from the predecessor. Choosing between the two may therefore offer a similar experience. Still, the Oxygen series gives the underwater setting a distinctive mechanical twist and offers plenty of features to explore.
Evan Carrington brings more than 12 years of experience in the iGaming industry, specializing in online casino reviews, slot game analysis, and player safety assessments. Their expertise includes casino licensing, RTP, volatility, bonus terms, and withdrawal policies. Combining hands-on reviews with independent research, Evan provides clear, evidence-based coverage to help players understand gambling platforms, their features, and possible risks.
