What is the total number of adventure games released in 2005?
adventure games refers to game_name WHERE genre_name = 'Adventure'; released in 2005 refers to release_year = 2005;
SELECT COUNT(DISTINCT T3.id) FROM game_platform AS T1 INNER JOIN game_publisher AS T2 ON T1.game_publisher_id = T2.id INNER JOIN game AS T3 ON T2.game_id = T3.id INNER JOIN genre AS T4 ON T3.genre_id = T4.id WHERE T4.genre_name = 'Adventure' AND T1.release_year = 2005