Turret Rampage is an action shoot 'em up with tower defense mechanics from developer and publisher Kiepska Spółka. Players control a defensive turret tasked with repelling waves of underground invaders. The gameplay centers on rapidly switching between enemy tunnels and utilizing specific weaponry to counter different foe types. Initial encounters involve basic enemy units, but progression introduces more challenging adversaries.
As enemy forces escalate, so does their offensive capability. Players must adapt their strategies to counter specialized enemies like ethereal Lansters, which require silver shackles, and stronger insectoid creatures that create additional tunnels and employ explosive attacks. The player has access to a varied arsenal, including rockets and an artificial earthquake ability, to defend against these threats.