Deadspace added appropriate dialogue in smart places when there's was none at all, giving Issac a better character for the first game.

The tram system and entire game plays out in 1 cut to further immerse the player into the ship, added a few side quests that don't get in the way or stand out like a sore thumb.

They improved the no gravity sections controls and camera, they added the deadspace 2 telekenesis combat with ripping off spiked arms or sharp piles to impale monsters to walls making combat even more fluid and visceral.

Improved gore and flesh tearing effects of the monsters, some new story bits from expanded lore, and of course graphical overhauls.

The last of us part 1 make things look nicer and added a part 1 at the end to remind you that the shitty part 2 definitely exists and you should remember that it exists.