What is the name of the genre with the most number of video games?
name of the genre refers to genre_name; genre with the most number of video games refers to MAX(COUNT(genre_name));
SELECT T2.genre_name FROM game AS T1 INNER JOIN genre AS T2 ON T2.id = T1.genre_id GROUP BY T2.genre_name ORDER BY COUNT(T1.genre_id) DESC LIMIT 1