If you've been looking for a quality sandbox mmo I think you should check out this one. It's still early in development, but it has a lot of potential. I could go on and on about all the features, or you could go to the site and read up.
https://www.ashesofcreation.com/ref/Drokk/ is my reference link. If you want to use it and make an account, I'd appreciate it. But if not, that's cool. I do suggest making an account as it automatically enters you into weekly drawings for alpha and beta keys (alternating between random drawings, and hand-picked based on participation in forums, discord, referrals). Alpha is planned for late 2017 at the moment. Should be a kickstarter in the not too distant future as well.
You can watch some videos on their youtube channel: https://www.youtube.com/channel/UCfb...mIJ55TJvZumNZw
Discord at https://discord.gg/VNcEX Hop on and join in the chat. It's quite active. The creative director Steven Sharif is often on talking and answering questions. There's a section with already-answered questions.
I hope you at least give the game some consideration. It's got a lot going for it.