Source

That's about it.

Good story. Didn't we always know this though? He's been saying it's going to take place in that mars testing facility, which does indeed take place between 999 and VLR.

Or, at least most of VLR.

I'm willing to bet that the game will find ways to take place at other periods in the timeline too, though sure, I'll believe that the majority of the game will take place between 999 and VLR.

This is useful information for people who haven't played the game.

Now they'll know.

Yeah the desert place where limbs go missing.

It's a paralequilogue to the second game, and an aesequalogy to the first.

Sorry if this is some obvious stuff, I haven't played the series.