f**k steam. read all please!

[Yuhaney]

Take it this way, what did you learn from this? Always to make backups!

Now that's said, check if there's something left on the folder you installed Steam. Maybe you get lucky and the Custom Story files are still there, since I don't believe uninstallation of Steam would remove those.

However, you can always re-download games that you have bought through Steam so nothing lost there. Just install Steam again and start downloading the games you want.