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For those who don't know, boardgame wargames are games played on a map, which is generally overlaid with a grid of hexagons. Cardboard playing counters represent military units which move on the game map and engage in combat.
I am mainly interested in science fiction wargames, such as Triplanetary, Star Force, and Stellar Conquest.
The reason you haven't heard about such games is because they were made obsolete by computer based wargames. And nowadays computer based wargames are passe.