Ludum Dare 20 is a game-making competition that took place on April 29th-May 2nd, 2011 the Theme was It’s Dangerous to go Alone! Take this!
Here is a zip which containts the first 50 games, according to the readers-voters preference. Most of the games are playable in the browser, some have versions for linux and mac.
In the zip there are also included the source code (where available).
A nice platform adventure game.
Shadows are lurking in every corner waiting for our protagonist to make a wrong move, but as luck would have it a beacon of light appears out of nowhere to help him illuminate the way forward.