Momodora (Windows, 3MB, free) - A game that draws obvious inspiration from Cave Story, Momodora is a sidescrolling platformer where you play an orphan girl searching for a rare item hidden deep within a labyrinth. You'll spend a fair amount of time trekking through winding cave passageways and gathering new items and weapons, but the focus is more on combat than exploration, and the challenge level is cranked up to above average.
Nudo (Windows, 3.2MB, free) - A delicious little puzzle game with an official description that reads "...a platformer on top of a rubik's cube". How cool is that? The little protagonist guy can move around with the [WASD] keys, jumping and walking like you would expect. His other power, though, is the ability to shift blocks both vertically and horizontally from his position. Use the [arrow] keys to shift entire rows of blocks in any direction, positioning them so you can grab the little coin thingies and make it to the exit. Yes, it's about as difficult as a Rubik's cube in some places. And that's awesome!
8:Capsule (Windows, 7MB, free) - It's a puzzle game. Don't pass the number eight, though. Really, don't. But, you know, if you do, just use the [WASD] keys to move and the mouse to click on objects. See what you can click on, and when things are selected, use the [right] mouse button to launch them. It's great when things bump into other things, isn't it? Now, see if you can figure out how to solve each level. Obtuse at times, but fun!
Cat Poke (Windows, 5MB, free) - Bored on a rainy day? Why not run around the house trying to poke the cats?! Move from side to side in this 2D game, entering doors with the [s] key and poking cats with the same. Most cast are hidden and need some coaxing to come out and play, which is where the items and inventory puzzles come in to play. A quirky, surprisingly interesting game with superb artwork and a premise that's too cute to ignore.
Note: All games have been confirmed to run under Windows Vista and are virus-free. Mac users should try Boot Camp, Parallels, or CrossOver Games to play Windows titles, Linux users can use Wine. If you know of a great game we should feature, use the Submit link above to send it in!