// Initialize the API if (!SteamAPI_Init()) printf("Fatal Error: Steam failed to initialize.\n"); // Handle error: disable Steam features or exit return;

If you want to "init download" for a Steam Workshop mod, use ISteamUGC .

# In your .env file STEAM_API_KEY=XXXXXXXXXXXXXXXXXXXXXXXXX # In your Python script import os from dotenv import load_dotenv load_dotenv() KEY = os.getenv('STEAM_API_KEY')

Here is a concrete example initializing the API and downloading player summaries: