Gallipoli is an all-around improvement for the World War I series, bringing sharper visuals and better gameplay to one of the conflict's least-explored fronts.
The Elder Scrolls IV: Oblivion Remastered is a decent enough port, but nowhere near the level of quality it should be for what the system is capable of.
STEIN'SGATE RE:BOOT is good because STEINS;GATE as a story is, but doesn't make a great case as a remake. It has beautiful backgrounds but mixed characters.