Steam Support generally does not offer a "buy all" package for standard consumers.
You can use the SteamDB Free Packages tool and a browser extension to mass-activate thousands of free-to-play games and DLCs simultaneously.
If you are looking to expand your library significantly, these methods are more efficient: buy all of steam
According to tracking from Steam.seewang.me , the cost to purchase every game on the platform fluctuates based on active sales: ~$1,385,598.50 Discounted Price: ~$1,337,311.32 Practical Challenges & Solutions
Buying every item on Steam is a massive undertaking that currently costs . While there is no official "buy all" button, you can track the total price and manage large purchases through specific community tools and Steam features. Total Cost to Buy Everything Steam Support generally does not offer a "buy
Developers often create Steam Bundles that allow you to buy entire franchises or publisher catalogs at a set discount. Mass activate free Steam Games | SteamDB Free Packages tool
You cannot add the entire Steam library to a single cart at once. While there is no official "buy all" button,
Steam is not designed for bulk purchasing of the entire catalog, leading to several technical hurdles: