Games like KUNKUN Defender

KUNKUN Defender is an FPS + tower defense game where players need to resist zombie invasions in different regions affected by a virus outbreak until a helicopter comes for rescue.

KUNKUN Defender is an FPS + tower defense game where players need to resist zombie invasions in different regions affected by a virus outbreak until a helicopter comes for rescue.
Picked to match KUNKUN Defender on gameplay, themes, and feel.