From what I remember of FFXI, FFXIV felt pretty different. XI was a lot more like the single player games in the series from around that time I think, while XIV is more similar to your typical MMO with a Final Fantasy twist to it here and there (like the job system). They're essentially direct competition with each other due to the overlapping parts, but people would definitely have an easy time determining a preference of one over the other due to the differences that are present (as far as I can remember, given that it's been maybe a decade or more since I even tried XI, so grain of salt).I was thinking FFXI as well, the Orcs holed up in the abandoned fortress screamed Fort Ghelsba. I haven't played FFXIV so I wasn't sure if there was a similar setup in it.