So I downloaded that game called "Universe Sandbox 2" and i have had a lot of fun with it. There are some things missing but the developers are updating it regularly.
Anyway, I was looking at Mercury and it looked like this
The colour seemed off because I saw a picture of Mercury that was taken by "MESSENGER" back in 2008 and it looked like this (second image).
But then I decided to look at NASA's pictures of mercury aaaand...
Sorry if the pictures are too big. I know that Universe Sandbox is not very accurate simulation but i have also heard that NASA uses CGI most of the time. So how does Mercury really looks like? The image MESSENGER took is an enhanced coulour image so to be honest i have no idea what's real anymore.