I need help

[Nintega137]

I recently downloaded source filmmaker but it doesn't show up on my steam account and if I try to use it nothing happens. What's wrong?

[6000 ANGRY BEES]

Check the "Software" area of your Steam library.

[sono himitsu]

Reinstall for the "nothing happens" problem.
Or check for errors.

[Nintega137]

I can't find any errors. I still can't get it to work.

[celica soupra]

Right click on it in your library, properties>local files>validate application cache. That replaces any missing files.