Reminded me a lot of Battle Beyond the Stars. Same Seven Samuraiish structure, where valiant warriors from all walks of life are thrown together by fate to defend the peaceful townsfolk from the marauding intruders. (‘Liabe Gods pick robots too’).

Extra points for deadly serious Vic Morrow grimly stalking like Hamlet amidst the leftover Buck Rogers TV series robots, spacegoing sailing galleons with rows of oars, gauzy space princesses, green evil Space Vikings, bad grannies in space wheelchairs, dayglow plastic walnuts from the Liabe Gods, and comical Space Cop pursuing those crazy teenagers playing space chicken in their combination Thunderbirds and Transformers hot rod spaceship.