It is a remaster of the original game developed by Team Ico and released in 2005 for the PlayStation 2, using ultra-high definition art assets.
The developers remade the assets from the ground up, but Shadow of the Colossus retains the same gameplay from the original title aside from the introduction of a new control scheme.
[7] Sony had announced a remaster of Shadow of the Colossus for the PlayStation 4 during their Electronic Entertainment Expo 2017 press conference.
The idea for a remaster had come after a conversation Bluepoint developers had: they wanted to create a new definitive version of the original game, and after speaking with friends at Sony Japan, it was agreed upon.
Bluepoint producer Randall Lowe and technical director Peter Dalton stated in an interview with Game Informer that the original Shadow of the Colossus was on many of their employees' Top 5 of all-time list.
"[21] 9.7/10 was Marty Sliva's score on IGN with the summary: "Shadow of the Colossus on PS4 is a stunning return to the classic that wowed us in 2005.