If I sync my iphone to a new computer, will I lose all my data?

So I have an Iphone 4 synced to my old laptop. I got a new laptop, and I moved all of my music and pictures and whatnot there. I transferred the purchases, and I backed up the Iphone to the new computer. Can I sync without losing my data? I'm just really worried because I have a lot of RPGs and otome games and a manga reading app, and I really don't want to lose my saves or in-app purchases or favorites or anything else.

Not if you back it up on a hard disk

Yes you'll loose everything.

What you need to do with the old laptop is export your library in iTunes to a CD memory card or flash drive then put that in the new laptop and import it to iTunes.

I think not i ever try it, reduce the risk man just backed up all of your data