We’re heading off to outer space for this alien-themed online slot game from Microgaming, named What on Earth. This is popular 5 reel and 9 pay line slot which boasts colourful graphics and animations, heaps of characterful aliens and their spaceships, and some funky, eerie sound effects too. The game is fast-paced, good fun and offers a bonus feature which can be triggered by 3 different bonus scatter symbols.

There’s an unusual creature who appears to be within some kind of space-bubble or window so we’ll call him the space-alien as opposed to a spaceman, and he acts as the highest paying symbol. Joining him is the silver spaceship and a red asteroid. The lower value symbols combine traditional fruit machine symbols with the space-theme, so we have a melon planet, a plum planet, an orange sun and an apple meteorite! Clever designing indeed.

The wild symbol is the What On Earth logo, and this only substitutes for the 2 highest value symbols: the space-alien and the silver spaceship. There are 3 different types of scatter symbols – a blue shuttle, a red rocket and a green spaceship. If you land 3 blue shuttles on adjacent reels, 3 green spaceships on adjacent reels OR 3, 4 or 5 red rockets on adjacent reels – any of these will trigger the game’s main feature, the Beam ‘Em Up Bonus. During this game, you must select one of the alien characters to beam down to Earth; there will be a variety of characters available to abduct and each one carrying a prize – this is your chance to win a galactic prize!


Space is a popular theme amongst online slots, however What On Earth throws a different spin on the theme by throwing amusing, cartoon-style aliens and spaceships into the bag. I really enjoyed the theme, sound effects and straightforward gameplay. It’s always great to play a new bonus feature, and this is no different, although in my experience of testing out this game, the bonus took a long time to trigger. Perhaps this was just bad luck on my part, but nonetheless this is great cosmic game to play and well worth checking out.

New players only. Wagering occurs from real balance first. 50x wagering the bonus, contribution may vary per game. The wagering requirement is calculated on bonus bets only. Bonus is valid for 30 Days from issue. Max conversion: 3 times the bonus amount. Excluded Skrill deposits. Full Terms apply.