itch.io

good game overall tho

The drones at the start are the delivery drones, which spawn  attack drones and  delivery pickups. They also will occasionally multiply. If you kill all of these, then the game will basically stop. The sound was probably the attack drone that I put below the map in order to be able to spawn more (if the original attack drone gets destroyed, I can't spawn in more, because I'm too lazy to figure out how to instantiate a prefab).