Reading time is around minutes.
Package -
There is no package for this game as it is a download only installer. The package is 3.62GB so unless you have a high-speed internet connection, be prepared to wait. You will also need to have Steam installed and to have downloaded and installed the Source SDK 2007 (you can find this in the Tools menu). We highly recommend installing the Source SDK 2007 first as it is also a rather large install (about 4GB). Once that is in place and you have downloaded the files from Black Mesa Source you are ready to finish up the installation.