But I wanted to get them 2 things, not just one and $30 is my entire budget. Is there any simpler ones for say $20, and then I could get something else for $10? Something similar? IDK anything (literally nothing) about this kind of stuff.
If you know they have a big group to play with, then I would recommend Risk over anything else. Risk is a timeless classic and my alltime favourite board game. There are a bunch of variants of the traditional risk available on Amazon, including a Game of Thrones one which looks very cool.
EDIT: Up to now I realised I haven't directly answered your question about being able to purchase two nice items over one. My answer is that I don't think so from the little research that I've done into the subject. The plain old Uno card game (which I don't realllyyy recommend) goes for under $10, can't think of a second item though.