This is a strategy game in which players must save present-day Earth from an alien invasion. As players manage resources, research weapon technology, and monitor alien presence, they can dispatch squads of soldiers to attack human- and insect-like creatures in turn-based combat. From a 3/4-top-down perspective, players use assault rifles, grenades, and other military-grade weapons to kill nearby enemies. Battles are accompanied by intermittent cutscenes that depict close-up (e.g., over-the-shoulder) instances of violence: soldiers getting impaled or beaten to death by alien creatures; realistic explosions that result in larger blood sprays. If an alien “implants” an egg into a dead human, the character will eventually explode amid additional gibbing effects. Some scenes depict dead or dying soldiers whose bodies are burned or mutilated. The words “f**k,”“sh*t,” and “a*shole” can be heard in the dialogue.