Gun Law by Rajcsányi László is an action game made with GB Studio.
The story of the game follows: Aliens attack your hometown. All the surviving inhabitants have fled and now an attack has been made on your weapons stores. You are left alone armed with a single machine gun. You need to prepare to shoot on sight. As you progress through the level of the enemy defenses, the aliens become more blood-thirsty and turn what were once your own rockets and grenades against you. Take cover behind the trees, houses and fences, but don’t stop for too long or you’ll find yourself surrounded. The aliens are ruthless and the fighting bloody, but you must survive this wave and restore peace back to your land.