Oxygen 3
Rules of the game
• Oxygen 3 is a 6-column x 7-row slot machine with falling symbols and group wins.
• Each bet is 100 coins.
• A winning group consists of 5 or more identical symbols that are connected vertically or horizontally. Only the largest group of connected symbols is paid out.
• Each round of play begins with the selected betting level when the player presses the Spin button.
• You can play the game automatically by activating the Auto Spin function. Press and hold the Spin button or use the Auto Spin button to set the number of game rounds to be played automatically.
• Winnings and winning combinations are paid according to the Payout Table.
• Winnings are displayed in the player's currency or in coins. The player can change this preference in Settings.
• The game is played in two modes: normal mode and Bonus mode with bonus drops.
• Wild symbols substitute for any paying symbol. A winning combination consisting solely of Wild symbols awards the jackpot.
• Oxygen 3 uses the Avalanche mechanic: the game begins with a symbol falling. All winning symbols are collected and removed, or, if it's a special wild, triggered to explode later. The remaining symbols are affected by gravity, meaning they will fall vertically until they come to rest. New symbols appear to fill the empty spaces.
• The avalanche continues as new winning combinations appear.
• The first time a winning symbol is removed, an Oxygen Bubble is activated in that same position. Each time a winning symbol is removed over an existing bubble position, the multiplier value is doubled (the activated Oxygen Bubble counts as x1). Oxygen Bubbles are unaffected by gravity. All Oxygen Bubbles and their multiplier values are retained between bonus drops in Bonus Mode.
• The Multiplier Hit feature places clusters of Oxygen Bubbles with multipliers on the game grid before the symbol lands. The Multiplier Hit feature can be triggered by any symbol or bonus land.
The Clam symbol is also a Wild and substitutes for any paying symbol. If the Clam symbol is part of a winning combination, it will trigger one of three features immediately after payouts are calculated: the Starfish feature, the Squid feature, or the Pearl feature.
• The Pearl function is one of the three functions that can be triggered with the Clam activated.
• There can only be one Pearl on the game grid at a time.
• After the winnings are assessed, before gravity takes effect, the Pearl feature is activated. A paying symbol is selected from the game grid. All symbols of this type will remain fixed on the game grid during this feature.
• Feature symbols on the game grid will also remain fixed, even if they contribute to winning combinations. A double drop cycle begins where all other types of paying symbols disappear and new symbols appear. After each double drop, a payout assessment is performed, excluding all symbols selected by the Pearl feature.
• The double drop cycle continues as long as at least one more pay symbol of the selected type or a Wild symbol appears, or until the grid is filled with symbols of the selected type or symbols of the feature.
• Once the double drop cycle is complete, all fixed symbols are released and a final profit evaluation is performed that includes all symbols on the grid.
• The Squid symbol is one of the three symbols that can appear when a Clam is caught.
• The Squid starts a cycle where it generates a Wild symbol in its current position and then moves to a new position.
• The squid will repeat this cycle until it leaves the grid.
• The Starfish symbol is one of the three symbols that can appear when a Clam is caught.
• When the Starfish appears, it begins a cyclical pattern where it rotates to point horizontally, vertically, or diagonally. The Starfish will eliminate paying symbols in this direction. Any feature symbol that lands in this direction will be triggered. In the final position, the Starfish will increase the multiplier.
• The starfish will repeat this cycle until it transforms into a Wild symbol.
• The Explosive Wild symbol is a special Wild symbol that can be activated to cause an explosion.
• The Explosive Wild is activated when it is part of a winning group or when it is affected by the explosion of another Explosive Wild, a Wild Explosion, or a Starfish.
• An activated Explosive Wild will explode when no more winning combinations appear. The explosion removes all paying symbols within two cone-shaped areas facing upwards and downwards or to the left and right of the Wild symbol, forcing a symbol reload.
• The Wilds Explosion is a special Wild symbol that can be activated to cause an explosion.
• The Wilds Blast is triggered by being part of a winning group or by being affected by the blast of another Wilds Blast, an Explosive Wild, or a Starfish.
• The explosion transforms all paying symbols within an X or + pattern of the Wilds Explosion into identical symbols. Symbols that have been previously transformed by another explosion and are affected by a second one will also become Wilds.
• Symbols of sizes 2x2, 3x3, and 4x4 can appear in any symbol drop. All large symbols are counted by the number of 1x1 symbols they fit; for example, 2x2 is counted as 4 standard 1x1 symbols.
• 3 Bonus symbols trigger the Bonus game with 10 bonus spins.
• The Bonus game features an Oxygen Meter that fills up with each winning combination. When it's full, the meter empties and activates and enhances a group of multipliers on the game grid.
• 3 Bonus symbols, where one of them is a Super Bonus symbol, activate the Super Bonus game.
• The Super Bonus game features a Super Oxygen Meter that fills up with each winning combination. When full, the meter empties and activates and enhances a large group of multipliers on the game grid.
• Oxygen Meter and Super Oxygen Meter levels are maintained between Bonus drops.
• The Bonus game and Super Bonus game can be retriggered. 2 Bonus symbols in Bonus mode will add 3 bonus spins. 3 Bonus symbols in Bonus mode will add 5 bonus spins.
• The Bonus game with bonus drops ends when there are no more bonus drops or when the winnings limit is reached.
• Winnings are paid out at the end of each round of play.
• The maximum total winnings in a game round are limited to 25,000 times the bet placed.
• A game round ends immediately when the winnings limit is reached, and the winnings accumulated up to that point will be paid out.
• Bets cannot be changed during a game round.
• The theoretical payout (RTP) is 94.0%.
• In case of malfunction, all bets and winnings will be void.
Last modification date: 4/8/2026