Found 18K+ games on NVIDIA GeForce NOW

I, along with many NVIDIA GeForce NOW users, am waiting for Nvidia to add new games. Some of the preferred games, like the Mafia series, were previously available on GFN but were removed. While waiting for these games to become available again, I tried to recover deleted NVIDIA GeForce NOW games. During this process, I accidentally discovered something unexpected.

Republished at https://reverseeverything.com on June 25, 2026.

My story

About half a year ago, the NVIDIA GeForce NOW service operated differently. You could launch Steam directly and then select any game of your choice. Most of the games were locked due to GFN limitations, but I figured out how to run games not officially available on their website. I managed to play Gas Guzzlers Extreme at that time. So, I wanted to find a way to get a full list of games available for GFN. An old version of the GFN client app used to download the file whitelist.json, which contained a few thousand games. Unfortunately, it’s no longer possible to get a new update of this file.

Four months ago, I decided to continue my research and inspect the GFN client application. I aimed to test if the old version of GFN, which downloaded the file whitelist.json, could…