GAMES THAT USE IT
An rough form of this engine can be found in The Far Towers; that variant assumes a seperate roll for each danger, and uses 'classes' to manage it.   The Far Towers version is a direct descendant of a game-that-died-in-development known as The Red Box Hack, and also wraps in a number of combat options based on "zones".  If you're hoping to use Danger Rolls it for an tactical game, you'll likely want to grab Far Towers and transfer the bits you need.

PLUG-INS
Almost all of the plug-ins on the site can be applies to Danger Rolls.  However, be aware that you're walking into uncharted territory when you do; the Danger Roll engine given above has seen only minimal playtesting, and might end up doing something completely weird on you.