The entire list of applications without a Steam AppID can be found here.
If you want to read Ighor's story of how he came onto this data, you can find it here.
Nvidia responded with this statement:
Which could be a hand-wave to avoid criticism from developers or not. We won't know until it's official...or not.NVIDIA is aware of an unauthorized published game list, with both released and/or speculative titles, used only for internal tracking and testing. Inclusion on the list is neither confirmation nor an announcement of any game.
NVIDIA took immediate action to remove access to the list. No confidential game builds or personal information were exposed.