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Games that can be played by more than one player, either locally or online.

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

Games where the primary goal is keeping the player character alive under harsh circumstances such as dwindling resources or a hostile environment.

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