To check how much money has been spent on Steam, follow these steps within the Steam application or website:
- Open Steam and click on "Help" in the top menu.
- Select "Steam Support."
- In the Steam Support page, click on "My Account."
- Then go to "Data Related to Your Steam Account."
- Scroll down and click on "External Funds Used."
- You may need to sign in again to verify your identity.
- On the page that opens, look for "TotalSpend." This will show the total amount of money you have spent on Steam, including games, microtransactions, and add-ons. There are other categories like "OldSpend" for money spent before April 2015, but "TotalSpend" is the comprehensive total.
This method reveals your complete spending history on Steam, which is typically hidden in the interface but accessible through these help menus. This will give an accurate figure of all your investments in Steam over time.