No revenue estimate for PSN — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $122.9K — a different platform, not this one.

It came from space and ate our brains

A merciless alien species that feeds on human brains (duh) has invaded the Earth. Who can stand up to them? You, obviously! Save the world—or at least yourself. Send aliens to oblivion in It Came From Space and Ate Our Brains—a unique top-down arcade shooter. Addicting gameplay elements, co-op mode, and a way to turn aliens into goo? It’s all here! Explore atmospheric locations with a flashlight and a weapon powerful enough to blast those unwanted intergalactic guests back into space. Survive hordes of enemies trying to corner you and get inside your skull… at least until you set a new high score and die like a badass! Key features: •\tSix exciting co-op campaign missions for up to 4 players •\tDifferent alien types •\tPowerful weapons and special powers •\tAn incredible techno soundtrack that serves as the perfect background for brain-eating mayhem