I used to play Starquest, which was really cool and practically my introduction into Warhammer 40k - the Marines from the Boardgame formed the start for my army. However I do not play it anymore, I am not even sure if it is still complete.
I also played some Heroquest, but Memory is vague about that, same counts for the "Das Schwarze Auge" boardgame, which was a boardgame adaption of the Roleplaying Game I started with ( the recent edition was translated into English under the title The Dark Eye ).
I also played some of the Star Wars Miniatures Game, although I primarilly aquired it for using the miniatures with the RPG - althought this never took place really, as the campaign stopped.
We came in peace, for all mankind - Apollo 11