Alianator

Aliantor is a Defender variant, but instead of side-scrolling in a 3D-environment. Besides the usual alien attack on a space station there is no background story. The player is cast as the only defender of the eight inhabitants and has to prevent them from being kidnapped by the aliens. Each of the levels can be freely navigated (the ship's speed is automatically throttled when the invisible walls are reached) and the inhabitants stand around on pre-defined places. The aliens have various ship types with different behaviour patterns which either try to destroy the player's ship or collect the inhabitants and bring them into the aliens' invincible station. There they are transformed into…