When access is not allowed in your country

1.
To add a game to your shopping cart, open the accelerator, change your location to Hong Kong Search Games, open your shopping cart, go back to your home country, buy the game, and enjoy the game.
(Of course you can use STEAMDB)

2.
For free DLC, press WIN + R and type Steam : // install / 1268940 and Steam : // install / 1231450 for installation.

Thank you for the information, users!!!