What on Earth is a Microgaming powered video slot machine. This means that you can enjoy it at many online casinos that are powered by Microgaming. The recommendable casinos are Jackpot city and Gaming Club Casino. The game is themed around aliens and outer space. This is why the symbols are all related to aliens. For example, the symbols include space creatures and alien life forms accompanied by card symbols and fruit symbols.
The game has five spinning reels and nine paylines. It offers players a jackpot that can pay out a maximum of 37,500 coins. The wagering range of the slot machine varies between 0.01 credits and 45 credits since the game has five paylines and coin sizes that vary between 0.01 and 1. The wild symbol is the What on Earth icon which can be a part of a wining combo and it can substitute for any other symbol.