Underwater Adventure - Review, Demo Play, Payout, Free Spins & Bonuses

Introduction

Slots temple has over 150 slots games with a deep-sea theme, including Fishin’ Frenzy and the iconic Mermaids Millions online slot. Now, 7Mojos has thrown its hat into the ring with this five-reel, four-row game packed with aquatic life. Can you evade the sharks and jellyfish to discover the whereabouts of the sunken treasure chest?

Graphics & soundtrack

There is a real fun element to the graphics and animations in Underwater Adventure, with a selection of sea creatures joined by maps and treasure chests. Rather than spinning onto the reels, the symbols appear reel by reel, with winning combinations contained within air bubbles.

There is a jaunty tune playing out in the background that will have you tapping your toes in time to the beat; however, like so many game soundtracks, this can become tiresome after a while. If you need to find the mute button, it is in the settings menu.

Underwater Adventure RTP & volatility

The game has an RTP of 94.2 per cent, which we find disappointingly low. We refuse to play games at an online casino if they offer theoretical returns below 95 per cent, as this pushes the house edge too high in our opinion. This percentage puts the house edge just shy of six per cent, which is a step too far for us. What’s more, Underwater Adventure is a highly volatile online slot, so big wins are few and far between. This all adds up to a whole lot of risk. If you are interested in playing this game, we recommend playing it in demo mode - at least in the first instance.

You can play Underwater Adventure, along with a broad selection of other 7Mojos free play slots, right here at Slots Temple. This is the perfect way to determine whether you like a game enough to wager real money on it. If you do decide to play with real money, you will have the very best idea of what to expect when you spin the reels.

How to play Underwater Adventure

Getting started with Underwater Adventure is fairly intuitive, so even complete newbies will be spinning the reels like a pro in next to no time.

1. Your first decision is how many paylines to include with every spin. You bet on a per-payline basis; therefore, the fewer you include, the cheaper the cost of the spin. You have a great range of options to choose from, as you can play with 1, 5, 10, 15, 20, 25, 30, 35 or all 40 paylines active. We suggest playing with all paylines active wherever possible, as this will give you the best chances of landing a cash prize.

2. With your paylines set in place, it is time to decide how much you are prepared to pay for each spin. Choose your line bet using the buttons to the far right of your controls. This coin value will be applied to all your active paylines with every spin, so keep an eye on the total cost of your spin. This is displayed underneath the game.

3. To play at maximum stakes, press the max bet button to the left of spin.

4. Hitting spin will play out one game. For multiple spins at the same stake, select autoplay. This will keep the reels spinning at your current stake.

5. The menu button is positioned below the reels, giving access to the game’s settings, the rules and the paytable. You can also adjust your coin value and paylines here and set win and loss limits for the autoplay function.

Bet sizes & paytable wins

Paylines cost from 0.01 to 10.00 each in the Underwater Adventure. With all 40 paylines activated, you will have a betting range from 0.40 to 400.00 per spin. Line up three, four or five matching symbols across an active payline to win a cash prize. Awards are shown as multiples of your line bet as follows:

- Shark = 5x, 20x, 100x
- Hermit crab = 5x, 20x, 100x
- Angler fish = 10x, 40x, 125x
- Seahorse = 10x, 40x, 125x
- Jellyfish = 15x, 60x, 200x
- Compass = 15x, 60x, 200x
- Treasure chest = 25x, 80x, 250x
- Treasure map = 25x, 80x, 250x
- Oyster and pearl wild = 100x, 400x, 2,000x

Max-win 2,000x

Volatility High

Top RTP 94.20%

Underwater Adventure bonus features & free spins

The wild symbol substitutes for every other symbol in the Underwater Adventure, apart from the scatter; therefore, it can help to create one or more winning combinations every time it appears on the reels. It is also the game’s top-paying symbol. The game also includes a free spins feature.

The starfish scatter symbol only appears on reels two, three and four, so it can’t generate any cash prizes; however, land three scatters with a single spin and you will activate 10 free spins with a generous 10x multiplier. There is an optional gamble following any win, up to a maximum of 10,000.00. Correctly guess the colour of a playing card to double the value of your win, but get it wrong and you forfeit the winning sum.

Overall review

Underwater Adventure is an engaging slots game with a fun theme. It has been perfectly executed, as we have come to expect from 7Mojos. The only thing we really don’t like about the game is its desperately low RTP, which is likely to deter some players from wagering real cash on the outcome of their spinning session; however, you can play the game for free right here at Slots Temple with no financial risk involved.