Pillbox is a fast-paced shooter game with a pixelated graphics style. The players have to use different kinds of weapons, special abilities and power-ups to survive waves of enemy units. Supplies (weapons, abilities, etc.) can be bought and upgraded with the cash gained from neutralizing enemy units.
Use your weapons and special abilities to defend against an invading army. Upgrade your gear to increase your chances of survival. Use your mouse to aim and shoot the enemies.