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Complex military simulations (in a computer or in the real world). See wargaming.

Games played as a hobby where large battles are re-enacted by the players, see wargaming and strategy game.

WarGames, a 1983 science fiction movie.

The 2005 album Wargames by turntablist Rob Swift

A game of computer security, popularized by Hackerslab.org and the DEF_CON hacker convention. See Wargames (Computer Security).