The collection includes Grandia HD Remaster and Grandia 2 HD Remaster with enhanced sprites and textures, widescreen support and more.
Grandia 2 Anniversary Edition has also been updated to Grandia 2 HD Remaster.
It releases on the same day as the HD Remaster update for Grandia 2 on Steam.
Remasters for Grandia 1 and Grandia 2 are in the works, with more information coming at E3.