It wasn't long after I finished FFIX on Steam that FFX/X-2 HD Remaster came out, which was much sooner than I had expected. I jumped at it and into it right away. I've played both games a few times on the PS2 and really enjoyed them.
Steam says I've spent 157 hours playing it and that's just on FFX. I remember how easy it was to spend 100 hours on the original version. This time, there was more to do, since this is the International version. That means you can choose between the Original and “Arranged” soundtrack. I've heard the Original plenty of times, so I thought I'd try out the Arranged. It definitely seemed to have a much higher quality to it.
You can also choose between the Normal and Expert Sphere Grids. From what I read, it's easier to max out your stats on the normal one. So, I went with what I was familiar with. I did try out the expert one when I created a new game to go back and get some Al Bhed Primers I missed out on the first time. It definitely seemed smaller.
The International version also includes Dark Aeons. These are super versions of Aeons, which are very difficult to beat without Yojimbo's Zanmato move or a completely filled in Sphere Grid. After defeating all of them, a new super boss appears, which is very difficult even with a completely filled in Sphere Grid and using the cheat features.
New features also include tools to cheat like giving yourself maximum Gil, unlocking all skills, enabling “super charged” characters, changing the frequency of encounters and more. While I hesitated to use these at all, I found a lot of the extra end-game things extremely difficult to do without using them. They did make things easier and more fun.
FFX is the only game I have on Steam that I've unlocked every achievement for, which is quite a task, but I enjoyed it. I may post more after playing the FFX-2 part of this excellent 2-in-1 game pack.