Steam volidating rejected

While that number sounds initially impressive for a brand new console and operating system, a closer analysis reveals it’s actually pretty bad.

There are a couple of reasons a CD key would not work with Steam.

And if they are unusable, should I manually download them via the disks?

I do not know if I am suppose to include dashes or spaces, but they keys are in the following format: made a small edit to make this more directed at all steam keys, rather then your particular case.

There is a pretty good list provided here, which also includes a rough format guide, to identify if a particular key follow the format expected from Steam.

This appears to be the main issue you are having, given that neither of the two games are listed as supported.