Slitherine

Why is no Steam key available for Gettysburg? It's also on Steam, right?

Regarding the Steam key, the serial number provided, is already a Steam key, which can be used to activate the game on the Steam account without having to redeem a separate key. It's like the base game key: you could activate it directly on Steam by using the serial number provided.
All games with a serial number in the format XXXXX-XXXXX-XXXXX can be activated directly on Steam.
Only games with the older formats, e.g. XXXX-XXXX-XXXX-XXXX, need to have a separate key redeemed for Steam in order to activate the game on a Steam account.

Alrighty then. Thanks for the info. I was looking for the old procedure, and we've advanced beyond that.