In Space is a 2D top-down Arena Shooter where you are on an alien planet, and you have to survive to a horde of alien creatures that want your blood
The rules are simple: you have to survive for 10 minutes.

You have your Space Rifle with you, but you can gain experience points from your defeated enemies and buy new power-ups.
If you cannot beat the game, do not worry: you can buy permanent power-ups for you character in the Shop Menu, and become more powerful.