This is the Half-Life 2 public beta of level 01 of the GROGG game. You need to have Half-Life 2 and Steam application installed to run the game. Restart steam before running the game. You can execute the game within Steam's 'My Games' tab or from the shortcut on your desktop. Just click on the link to download the GROGG installer. Happy gaming and remember this is just a demo. We'll be pleased if you post your comments/critics/found bugs in the forum found on http://www.grogg-thegame.com.