Write SQL query to solve given problem: List down the game platform ID and region name where the games achieved 20000 sales and below.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.game_platform_id, T1.region_name FROM region AS T1 INNER JOIN region_sales AS T2 ON T1.id = T2.region_id WHERE T2.num_sales * 100000 <= 20000