The reviews start from April 20th, so I assume that is when they became available.
- Saints Row: The Third - The Full Package - 75% off: $3.74 (Cheaper than previously available.)
- Saints Row IV: Game of the Century Edition - 75% off: $4.99
- Saints Row: Gat out of Hell - 75% off: $3.74
The DRM-Free versions of Saints Row 2, Saints Row: The Third, Saints Row IV, and Gat out of Hell are all available for free if you already own the DRM-encumbered versions. To obtain them, you must claim them on GOG connect before the 27th.
Once you claim the DRM-Free versions before the 27th, they will remain in your GOG account indefinitely.
Once you download the DRM-Free versions, they are yours to install and play offline forever.