One of the major complaints regarding the initial release of Final Fantasy XIV; Eorzea was made up of copy-pasted chunks of zone, with a few set-pieces here and there.
I'm sure we all remember this video, and how many complaints were made against the game because of it.
Vidya
Now, as any Final Fantasy fan knows, monsters in new titles may resemble their counterparts in earlier entries.
For example, the bombs in FF8 (1999) and FF9 (2000):
You can see that they're recognisable as the same creature, but they're clearly different models with different textures.
I was surprised to find that a huge number of monsters in ARR have been directly lifted from both XI (2002) and XII (2006).