Drones:
Attack drone
Scout drones
Land drones:
Tank drone
Combat drone
YOU ARE READING
City builder in another world (Male reader city builder x harem)
FanfictionY/N Reagan (Descended of Ronald Reagan) was killed by nuclear explosions in san francisco. But he was given second chance and sent to another world.
UFF drones
Drones:
Attack drone
Scout drones
Land drones:
Tank drone
Combat drone