If you do not have the steam desktop application you can download it by following these steps: Open your web browser and navigate to https://store. steampowered. com/about/ Click install Steam, located in blue at the middle of the screen.

If you have access to your old phone number, you can select the first option via SMS. This will send a confirmation code to your old number. If you use Steam Guard Mobile Authenticator, you can use that as your authenticator. If none of these options work, you can select remove my old phone number at the bottom.

The mobile application does not support account creation.

If you do not have a phone number, add one by clicking Add a phone number.

If you have access to your old phone number, select Yes, I have the old phone number. If you do not have access to your old phone number, select Remove my old phone number.