(enhancement) On windows, you can get the running app without using the Steam API

[elmisback]

Even when the user is offline, the running Steam app id appears in the registry under HKEY_CURRENT_USER\Software\Valve\Steam\RunningAppID. It can be checked with Python like this:

import winreg

def get_running_app_id():
    try:
        # Open the Steam registry key
        steam_key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, r"Software\Valve\Steam")
        
        # Try to get the RunningAppId value
        app_id, _ = winreg.QueryValueEx(steam_key, "RunningAppId")
        
        # Close the registry key
        winreg.CloseKey(steam_key)
        
        return app_id
    except FileNotFoundError:
        return None
    except Exception as e:
        return f"Error: {str(e)}"

if __name__ == "__main__":
    app_id = get_running_app_id()
    if app_id:
        print(f"Running App ID: {app_id}")
    else:
        print("No game is currently running or the registry key was not found.")

Game details can then be obtained via the public Steam store:

details = requests.get(f"https://store.steampowered.com/api/appdetails?appids={app_id}").json()[str(app_id)]['data']

details['name'] # gives the title of the running game