OpenMex is a tool that can extract media from games archives, based on MultiEx (available on www.xentax.com). Currently, 142 games (and other formats) are supported (though not all tested yet). Check out our second alpha release.
rpm-depcheck is a tool for checking the RPM dependencies of a specified command.
It is useful, for example, for getting an indication of what should be included in the "BuildRequires" tag of a RPM spec file when compiling a program.