QuHelp is a command-line program that scans a directory with HTML formatted text files and builds a help site using that directory's content and a template. A default template is included, but any template can be specified. QuHelp adds a nice expandable tree view of the help site's contents, a navigator, permalinks, and other useful stuff for browsing the help site.
L++ is a multiplayer Lemmings remake which lets you play Lemmings against (or in a team against) others (up to eight players over a network). It has a built-in level editor. Lemmings is a game in which you guide one to ninety-nine lemmings from an entry door to an exit. There are commands for stopper, exploder, digger, builder, parachuter, and much more.