Vintage 1980 SPI WorldKiller World Killer Boxed Version Open Box Unpunched This game is unused however due to improper storage the box has some wear World killer is a simulation of the classic science fixture theme of planetary assault. In the standard scenario, one player commands the ships and orbital fortresses of the defending human forces; and the other player commands the ships of the marauding alien force. Beyond the standard scenario there are provided additional rules and types of ships in order that play might be varied in scenarios of the players own devising be gamed. Ships fast