2 revolving planets with gravity (and other atmospheric changes) that changes depending on that rotation.
I'm trying to imagine that. Give me a moment. Hokay. Wow. Firstly, I don't think pulsar is a term that is really appropriate in this context but whatever right? Secondly, I'm going to have to break this idea into two. 1) The concept of having planets with slowly changing gravity: That's awesome. You could have a planet's gravity modeled by a periodic relationship. That's intense. Imagine having challenge maps where there's some sort of obstacle that you can only overcome when the gravity is weak enough. 2) The concept of having two planets orbiting each other: Before anybody wonders, I'd like to say that, as far as I know, that idea is physically possible. I suppose this is the aesthetic portion of your idea, because you could have situations where planets have different gravity without orbiting planets. Anyway. Aesthetically, it would require there to be a separately animated image in the sky to represent the twin of the planet you are currently on. I don't expect it to be all too hard; it'd only require the twin to move independently of the sun.
Well in our universe pulsars are two orbiting starts, I'm not sure, but there may be an equivalent with planets. As far as graphics you need a few, day, night, day with other planet and night with other planet. There could be multiple rotations as well. Just a single planet with changing gravity would be awesome for reasons you stated.
1) That's not what pulsars are. Pulsars are rapidly spinning black holes which beam out energy that every so often points in our direction. 2) I don't think having "night with planet" and "day with planet" screens are really a good solution. It would produce a much more pleasing effect to have the planet moving separate from the sky behind it, regardless of how much effort it would take to implement that. (It shouldn't actually take all that much more effort) 3)
