Have a heart. Or rather, cut one out and put a new one in. Created in just a weekend, Bossa Studios delivers a hilariously morbid simulation of open-heart surgery where you control each finger of a hand separately and try to keep your patient alive with absolutely zero experience... or instructions.

So, you were cursed by a witch to be a human magnet, and all for collecting cans. Figure out how to use your newfound powers to save your sister in the action adventure game Cantrip. In this twisted take on the Hansel and Gretel tale, wend your way through the scrapyard, fight off guard dogs and more as you cleverly use your magnet powers to find the witch and get your sister back.

Choose your hero and embark upon a dungeon crawl in Dungelot. In this roguelike you'll face a myriad of monsters as you fight your way deeper into the dungeon. Collect items to increase your stats as you find the key needed to exit each level. How deep can you delve?

Ready for a puzzle that will run you rug-ged? Farsh, from the Persian word for carpet, is a tile-walking puzzler where you've got to roll and unroll your carpet to reach the exit. If you roll up just right, you can rotate the tiles around you to build a path. Just don't let your mind get frayed in the process!

Life is full of winners and losers and, if you are like most people, you are usually losing. Not so with Sangwoo Hong, Keyboardminer, and Pixelminer's surreal little mahjong-like game, Cubistry. Simply click on one kind of tile and then another of the same to make them both dissapear from the cube in a little flurry of 3D casino-style gratification that will be sure to stimulate your brain stem and keep you playing until each little cube is gone forever. And, if you manage to beat your best score, than all the better. But it's not necessary to enjoy this simple idea game done right.

Are they conveyor belts? Are they fallen trees? To be completely honest, we can't figure out what those strange laser-emitting bricks in increpare's aptly-named Puzzles are supposed to be. All we know is that they cause trouble if you touch them, but yet that danger might be the key to solving the eight enigmas in this game.

Red Riding Hood was once a normal girl baking sweets, skipping through enchanted forests, wanting to visit her grandma without any ulterior motives. Little did she know that she was about to be thrust into a nightmare when her poor Granny was taken by some rude wolf. Now it's up to you, as Red, to brave 96 levels of puzzles to save Granny and show that wolf it's never good to mess with a girl who can master gravity.

Across the universe, no matter the time period or location, delivering the mail is a rough job. Take the poor sap in charge of the space-based mail delivery station Meteor Mail, for example. (It's you, by the way.) That lonely technician has to fire packages from one end, then tweak the exact position of gravity orbs to thread each delivery through worm holes, asteroids, roving pirates, and other obstacles. But, if it were easy, we wouldn't have the delightfully challenging puzzle game that is Meteor Mail, so from adversity comes entertainment!

The Machine is a simple-looking but intricate building puzzle game created by Bumpkin Brothers. Just like The Incredible Machine, The Codex of Alchemical Engineering, Armadillo Run and countless other "assembly line" titles, The Machine charges you with fulfilling certain orders using machinery, moving parts, and bits and bobs that change the size or color of the product being manufactured. Things start off simple enough, but as any great puzzle game, before long you'll have plenty to contend with.

Now it's time to break the rules. A little. This edition of Weekend Download highlights winners of the 2008 Unity Awards, games created using the Unity plug-in that are playable right in your browser window. Technically they're browser games, but since you have to download and install something, they're downloads, too.