Metapackage for Steam dependencies

 Steam (https://www.steampowered.com) is a software content delivery system
 developed by Valve software (https://www.valvesoftware.com). There is
 some free software available, but for the most part the content delivered
 is non-free.
 .
 This package depends on libraries and other packages that are necessary
 to run Steam. It could also be useful as a way to install packages that
 are frequently asssumed to exist by proprietary games.