Projects supporting LiveScript

Editor Support

vim-ls - LiveScript support for Vim
komodo-edit-livescript-language - LiveScript for Komodo Edit
LiveScript.tmbundle - A TextMate, Chocolat, and Sublime Text bundle for LiveScript
livescript-mode - Emacs - basic LiveScript support (author: tensai-cirno)
livescript-mode - Emacs - LiveScript support (author: YHisamatsu)
livescript-mode - Emacs - LiveScript major mode (author: bdowning. Fork of cofee-mode)
kate-livescript - Kate
BBEdit
Coda
LiveScriptIdea - IntelliJ IDEA, RubyMine, WebStorm, PhpStorm, PyCharm, AppCode, Android Studio
live_script.lang - Gedit and gtksourceview compatible editors
brackets-livescript - Syntax highlighting LiveScript in Adobe Edge Code/Brackets
Web Essentials 2013 - A Visual Studio 2013 extension which provides LiveScript's syntax highlighting, compiled source preview pane, registers .ls/.lsc/.livescript extension with OS and applies official icon to those files.

livescript-middleware - Connect middleware for LiveScript
livescript-browserify - Adds LiveScript support to browserify 1
component-livescript - Adds LiveScript support to component(1)
liveify - LiveScript transformer for browserify 2.0
LiveScript-brunch - Adds LiveScript support to brunch
Mimosa-LiveScript - Adds LiveScript support to Mimosa
readymade
ss-LiveScript - LiveScript (JS) wrapper for SocketStream 0.3
Slake Build Utilities - Build utilities for Slakefiles
jspackage - build tool to provide import syntax for client-side code
require-ls - Adds LiveScript support to RequireJS
livescript-rails - LiveScript asset pipeline for Rails > 3.1
ruby-livescript - Ruby LiveScript is a bridge to the official LiveScript compiler
livescript-source - LiveScript compiler for Ruby
chem - 2D canvas-based game engine and toolchain optimized for rapid development. Supports LiveScript out of the box.
gulp-livescript - LiveScript plugin for gulp
gulp - You can write gulpfile.ls in LiveScript and use gulp --require LiveScript
make-livescript - LiveScript includes for GNU Make
livescript-livereload - LiveScript compiler plugin for LiveReload
plunker - You can add script.ls to a plunk, it'll be available as script.js
skewer-livescript-mode - LiveScript eval support for EMACS Skewer

Add your own to the list!