Egosoft have officially announced their latest space sim X4: Foundations is going to launch on November 30th, although the status of the Linux build isn't fully confirmed.
When asked about it, they simply told us "The plan is to launch the Linux Beta at release, but we have to see if that will work out.".
The announcement was accompanied by their new trailer:
They also released a longer gameplay trailer at the same time, which is an interesting way to do it I suppose. It's a game I definitely want to try out, as it does sound quite impressive. The ability to simply get out of your ship, walk around and climb aboard another ship and continue exploring sounds fun.
Egosoft are claiming it to be the "most dynamic X universe ever", with other races in the game free to build and expand, with a lot of the same options as players which should be interesting. It will offer multiple starting points with different characters, each with their own set of relationships, technology, ships and so on too.
The only current store they've confirmed is Steam. If they do manage to get a Linux build out, we will take a look for sure.