Steam version compatible with SE store version?

Firstly, I apologize if this is in the wrong place, it seems like the best fit from what I've glanced through.

I purchased the steam version of ARR during a sale a few weeks ago on a whim, absolutely love the game! Not quite to the new content yet, but looking forward to getting there. However, SE has a sale right now for Heavensward on their store and I was curious if anyone knows if the 2 versions play nice with each other, or if I would have to rebuy ARR from SE to get it to work?

Thanks in advance for any insight, answers, suggestions, etc...

No, the Steam versions and the non-Steam Windows versions aren't compatible. Technically they're exactly the same (same download client, same updates from Square Enix), it's just a licensing thing.

Your only option is to buy the expansion from Steam, although don't lose hope as they recently had a sale on HW so they're likely to again in the future too.

Do not buy a new copy of ARR reborn though, that will be for a new service account/new subscription and new characters. You can only apply one copy of each platform (Windows, PS3, Mac, etc) to each service account and since Steam and non-Steam PC are both classified as Windows, you can only have one of them.

Hope this helps, even though appreciate it's not what you wanted to hear.

Thanks so much for the info, worldofneil!