Destroy All Humans! - Gameplay

Gameplay

In Destroy All Humans!, players assume the role of Cryptosporidium 137 (Crypto for short), a warrior and member of the Furons—a race of war-like extraterrestrials with a Galactic Empire constantly seizing new worlds through conquest. After centuries of warfare against inferior species using unchecked nuclear weaponry left their species impotent and without genitalia, the Furons were unable to sexually reproduce and became forced to turn to cloning as means of reproduction, as well as a process by which to achieve immortality. However, after generations of clones, the Furon DNA is degrading, and each clone is becoming less and less stable.

Fortunately for the Furons, one of their scout ships came across Earth many millennia ago while returning from the Conquest of Mars. The Furon space travelers impregnated the "nubile" ancestors of the human race to "let off a little steam", inserting a strand of Furon DNA into the human gene pool.

Because of this each human contains a small amount of Furon DNA in their genetic code. Crypto is sent to Earth to harvest this DNA from human brain stems, locate and rescue his previous clone, Cryptosporidium-136, and spearhead a Furon invasion of Earth. The game is set up in a sandbox fashion. The player has a selection of weapons and mental abilities at their disposal, as well as access to Crypto's flying saucer. Destroy All Humans! implements the Havok physics engine, allowing for ragdoll effects on bodies and destructible environments.