Overland Blast is a mobile game where the player defends her/his village from an invading horde of monsters. The target demographic is casual gamers (as opposed to hard-core gamers) ages 8 - 108, primarily male.
Here are a few marketing descriptions of the game:
"Crazed and bent on destruction, a monster horde has flooded into your fabled homeland. The fate of the town rests in your hands. Protect the houses, fight back the monsters, save your village."
"Two parts Space Invaders, one part Angry Birds, and a splash of Tower Defense, this addictive action game challenges you stop the invading monster horde before they destroy your village."
"Attack the advancing hordes with a conventional weapon like a catapult or rocket launcher. Crave more powerful weapons? Upgrade your laser gun to a freeze ray, or use the antimatter gun to disintegrate the advancing hordes at an atomic level!"