There are a few great free games, so post a few here!
Doukutsu (Cave Story):
Really, this game is just awesome. A masterpiece of game design.
An 8-bit side-scroller shooter, strategy, RPG etc… etc…
Play as a young girl and enter her disturbed and strange dreams.
No story, no real point but to collect all the masks in each dream world.
I’ll post more as I find them, if you know of any; post them here as well.