Progress from an existing Wargaming ID account can't be migrated to your Steam account. Your Steam account will be used to start as a new player.
- Go to Steam and download the game.
- ~30GB of free HDD space is needed
- Select your region.
Choose wisely, you can't change region afterwards.
- The first time you launch the game, you will have to pick a username/nickname.
Choose wisely, for changing a nick is a paid service.
- Press Connect to get in-game.
With the next game launch you will get directly ingame, no server or username will be asked.