From what I understand, research progress between players is separated by forces. Pulled straight from the wiki, we see the following:

https://wiki.factorio.com/Multiplayer
"Each created force has its own research progression and different forces may attack each other."

The caveat there is ...

Sure, feel free to add me. I'm chill, easy going and certainly do not grief. Team player, here.

Kazyn is my steam name. The avatar is a weird-looking racoon from Battleblock Theater.

Hope to hear from you soon!

I can't add you as a friend because I haven't spent 5$ yet. Do you have any other ...

Sure, feel free to add me. I'm chill, easy going and certainly do not grief. Team player, here.

Kazyn is my steam name. The avatar is a weird-looking racoon from Battleblock Theater.

Hope to hear from you soon!