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Taking place after a huge catastrophe (eg. man made or natural disaster). See also the more political theme dystopian.

Games that are normally played on a table or other flat surface, such as board games, card games, dice games, miniature wargames, or tile-based games

Shambling undead humans who died after being infected by some sort of virus and are now "alive" again, commonly known for the desire to kill living human beings. Commonly paired with the (post-)apocalyptic genre.