I recoded the lighting engine to make it more efficient. While it looks the same as before, it is easier on the framerate now.
Especially in underground areas the frame rate took a hit, but it's much better now. Before the lighting script always included every light source in the room, now it ignores those not visible on screen. As a bonus, the lighting works on the zoomed out map view now, too.
The laboratory looks a little different now, doesn't it?
I added an upper floor. If you climb these twisted staircase (I'm really proud of the animation; that took some time!)...
...you get access to a new astronomy themed room. What will happen if you take a look through that large telescope?