Play Alien Fusion for Free

The reels of the Alien Fusion video slot are tubes in a lab that contain a whole host of loco alien furballs. Each tube is connected at the top, allowing fusion to take place when you trigger the magic combinations of alien chums.

A look at the pay table shows some really enticing prize potential with payouts that range from 5x to 5000x your line bet. The problem is there are a huge twenty one different aliens landing on the reels. This means, not only is it difficult to land winning combinations but, it's really tricky to spot the feature creatures. It's worth spinning a few reels in free play mode before you commit your real cash, so that you can get used to the different symbols.

There's an orange alien with sharp fangs who represents wild symbols and can substitute paying symbols in order to boost your win lines. There's also a great feature called the Cash Drop, where six consecutive non wins will trigger a guaranteed win. The reels will crackle with colorful energy as a glowing orange ball explodes and announces a random win.

What really helps boost the cash, whilst you're waiting to hit those tasty top wins, are the three entertaining in-reel features that give the game its name.

A good exploration of the pay table will help you identify the magic combinations you need for the game's special Alien Fusion features. These nine extra aliens don't offer payouts and they only land on reels two, three and four. It can be tricky to spot them but, you'll soon notice a feature is triggering by the crackling colored energy that sparks around the reels.

Two green aliens create a stacked wild on reel three for five reel respins. Two red aliens will trigger five reel respins with walking wilds in which a wild stacked reel travels from reel one to reel five on each spin. Finally, two blue aliens means five reel respins with multipliers. The central stacked wild here will whirl around the screen adding 2x and 3x multipliers to your win lines.

These fusions may be tough to spot at first but, they can pop up quite frequently. The medium volatility means they mostly just top up your wins but, occasionally they can electrify your wins with a really big hit.

Fans of classic arcade games will love the brilliant bonus round of the Alien Fusion video slot. Line up the purple aliens that have a manic grin across reels one, three and five and you'll trigger a fun game that has some great prize potential. The bonus is inspired by the original alien shoot 'em ups and demonstrates just how much these earliest Space Invaders arcade games are still hugely influential to modern audiences.

A whole screen of our alien chums line up in attack formation, all set to invade earth and only you can save the planet. You only have twenty seconds to fire on as many aliens as you can and each successful hit reveals a prize. Manage to shoot the alien ship at the top of the invaders and you'll destroy them all at once for a jackpot win.

It's a fun game, based on a classic but, it can be really challenging to trigger. In all the time we tested we got only two rounds of this addictive game.

The popularity of Space Invaders is born out of our fascination with space in general. Online gambling gets in on this act with a wealth of space-themed slots for fans to explore.

Some of our favorites include an arcade classic, complete with retro 8-bit style graphics, in the nostalgic Space Invaders by Ash Gaming. It's a game less about any massive prize potential and more about a fond trip down memory lane and it's well worth a spin for fans of the original game.

More invasions can be found in iSoftbet's Aliens Attack. There are just 5 paylines on this 5 reel game but, there's a great pile of real cash prizes waiting in the pay table. For something a little more in-depth, with a superb bonus game is Play'nGO's retro classic, Space Race.

This Allbet game is a solid online slot with appealing graphics and some great features to entertain a player. Whilst it's nothing wildly special and isn't set to overrun the slots world just yet, there's certainly plenty to enjoy on these fun reels, with some tempting real cash prizes to hope for.

The charming appeal of these funky alien beings may override the difficulty in telling them apart. If you're a player who can ride the swings of medium volatility, you're sure to enjoy the Alien Fusion video slot.

Those with the patience to trigger the bonus round will have great fun zapping the aliens and foiling their invasion attempts. For heroes with the skills to save the planet, you should load up the reels and play for free now.