
Start locally with Adam "Atomic" Saltsman's Legend of Zelda-esque Bomber Planet. Traverse the moon-like open world in search of a way back home. Your only weapons are timed bombs that can obliterate space crabs or be used to reveal helpful items. I recommend you use them for both.
The unstoppable indie force Markus Persson created a first-person dungeon crawler, Prelude of the Chambered, that looks and plays much like his other massively successful game, Minecraft.
I expected the vast majority of the escape-themed games to be run-and-jump centric, the only true platformer that impressed me was Hollow. The multipurpose jump/attack mechanic is interesting and the developer even managed to squeeze in an easter egg.
The puzzle games stood out the most with the color matching of Rainbow Jail begging to be ported to handheld devices. The moody, hand-drawn mazes of Dream Path and the plan-your-path confusion of EscapeBot are both worth a whirl. The strangest puzzle game is Not the Sharpest Sword in the Box that involves moving your loose-limbed character within the confined space to avoid getting impaled.
Lastly, the interactive fiction of A Tale About Life Death and a Looser [sic] is a depressing look at modern life told with a needle-point aesthetic.
You might want to click around the other 590 or so games at your disposal on the Ludum Dare website. That should keep you busy until next year.
TWWT, Ludum Dare, Bomber Planet, Not the Sharpest Sword in the Box, Hollow, EscapeBot, Rainbow Jail, A Tale About Life Death and a Looser, Prelude of the Chambered