How many more sports games than simulation games?
sports game refers to genre_name = 'Sports'; simulation game refers to genre_name = 'Simulation'; how many more = subtract(sum(game_id where genre_name = 'Sports'), sum(game_id where genre_name = 'Simulation'))
SELECT COUNT(CASE WHEN T1.genre_name = 'Sports' THEN T2.id ELSE NULL END) - COUNT(CASE WHEN T1.genre_name = 'Simulation' THEN T2.id ELSE NULL END) FROM genre AS T1 INNER JOIN game AS T2 ON T1.id = T2.genre_id