Please note that in order to access the game using existing Gaijin accounts users have to authorize them on a game website first.
To download the game client follow the link to the game site https://gameroyale.net/ru and click the "Play for free" button.
If you do not have a Gaijin account, then you have to register and create a new one. If you already have a Gaijin account, enter its registration e-mail in the E-mail box and you will be prompted to sign in with an existing account.
After login you will automatically start downloading the game installer. If the download does not start, you can start downloading the game installer manually by pressing the "Download Game" button.