Lovekit is a collection of tools written in MoonScript that I use to build games. I've made (or started) the following games:
It does a couple interesting things. It has tools for rendering tile maps, doing box/box collision detection, uniform spatial grid hashing, lists for managing entities while reusing objects, particle emitters, a DSL for neatly writing time based sequences, a system for hotswapping images and classes while game is running for live previewing, screen recording for making GIFs, image spriting, game state management, viewports, and a handful of utility functions for doing assorted but useful things.
In the end I hope Lovekit will provide everything you need to quickly make all kinds of 2D games while still being organized. There currently is no documentation, and I don't plan on writing any until I solidify the APIs and extract more code from some of my previous games.