// The addoninfo.txt file is a metadata file that is required by all Source Engine Add-ons. "AddonInfo" { addonSteamAppID 630 // 630 is the app ID for Alien Swarm addontitle "Alien Swarm Example Addon" // Add-on title that shows up in Add-ons list. ~20 chars max addonversion 1.0 // Version number of add-on version of the form . addontagline "This is an example addon that contains an example/tutorial campaign." // Add-on tagline or wrap-up- a short description. ~100 chars max addonauthor "Valve" // Name/alias of the author addonSteamGroupName "" // (Optional) Steam group related to the add-on. We use this to construct a URL to the group page. addonauthorSteamID "" // (Optional) Steam ID of author. We use this to construct a URL to the author's page. addonContent_Campaign 1 //This addon provides muliple connected maps with a finale addonURL0 "http://www.valvesoftware.com/" //An html home page for the add-on that includes a download link. // short description that appears in the Add-on list screen... addonDescription "This is an example addon that contains an example/tutorial campaign." }