Invader was a Blacktron spaceship that was released in 1987. It came with one Blacktron spaceman and a robot. Invader consisted of 3 sections that, like other Blacktron spaceships, could be detached and recombined. These were also compatible with sets 6954 Renegade, 6971 Battrax and 6876 Alienator. The price was $14.25 (USD) and had 156 pieces.