Ufo Killer is one of those tremendously simple, basic and without great graphics action games, but because of the theme of the game they end up being very addictive and very entertaining at least to play for a while.
The objective is basic: you must destroy from your point of view of shooter the greatest possible number of UFOs that are attacking the Earth. Logically, the higher the number of demolitions, the higher the score and the less damage they will do in their invasion of our planet, so you will have to use all your skill and ability shooting with great efficiency in order to destroy the more the better.
NOTE: For correct operation you need to have DirectX 5.0 or higher installed beforehand.
You can free download Ufo Killer 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.