Casual Collective has been linked before[Previously, and Previously-er], but they have some more recent, well-crafted games.
posted on Jun 27, 2008 - View this thread

Crates are falling out of the sky. Push them off the platform. Keep doing it until one of them crushes you. Which it will. Soon.
posted on Jun 27, 2008 - View this thread

Friday Flash Fun: Caravaneer is a game where you are a caravan leader in a post-apocalyptic world where towns and cities have formed around oases in the desert.
posted on May 30, 2008 - View this thread

Planet Defender by MeFi's own justkevin.
posted on May 23, 2008 - View this thread

Flash Friday Doeo Simple, amusing, addictive.
posted on Apr 18, 2008 - View this thread

Flash Friday: Filler. Fill the 2/3 of the available space using as few spheres as possible while avoiding the bouncing balls.
posted on Feb 1, 2008 - View this thread

After playing Areas, I now feel the world needs more no-click ambient shmups. [via]
posted on Dec 28, 2007 - View this thread

Just in time for Flash Friday, Slate lists the best free online games. The first one they mention, The Tall Stump, has been on MeFi previously, but there's more—even an Infocom-style text-based game.
posted on Dec 21, 2007 - View this thread

Give ten grains of rice for each word you get right. It builds up very quickly.
posted on Oct 17, 2007 - View this thread

Friday Flash Fun: Kongregate has a variety of games, including my current fave Castlewars, a card based game where you win by building up your own castle, or utterly destroying your opponent's castle. You may also enjoy luminara, which I can only describe as the dance version of Asteroids. Or, you could just have a monkey fire at balloons with darts.
posted on Jun 8, 2007 - View this thread

It's almost better than bubble-wrap. Just touch your expanding dot to make contact with other dots. Clear an entire screen and you'll see Boomshine. Friday flash fun was never so gentle.
posted on Apr 13, 2007 - View this thread

Get Hostile! - Inspired by the well-beloved Avalon Hill board game Acquire, Get Hostile! is a free, web-based board game that has already sucked up hours of my time. Check out the quick tutorial to get up to speed, then play against live opponents or AI's, forming corporations, buying stock, and doing hostile takeovers!
posted on Feb 1, 2007 - View this thread

Flash Friday: Reaction Effect Click the circles to try to setup a chain reaction. Via games1.org, which also features cubefeild and drift
posted on Sep 1, 2006 - View this thread

Friday Flash Fun: Orbox B, the sequel to Orbox. [previously]
posted on Mar 30, 2006 - View this thread

Super Mario Brothers sound effects. Boing! Boing! CRUNCH! Ding! Ding! Ding! Whoop! Boing!
posted on Feb 3, 2006 - View this thread

War of The Hell. World of Sand. Hell of Sand. Cat Sledging. Java Friday. [via]
posted on Dec 30, 2005 - View this thread

Letters If your screen isn't facing anyone, it looks like you're doing work. Happy flash friday everyone!
posted on Nov 11, 2005 - View this thread

Friday flash fun! Try Poom! You move a constantly changing floor around in a virtual 3-D space so that a ball will bounce on it. Curiously entertaining...

There goes the rest of my day. via zannah
posted on Aug 19, 2005 - View this thread

Sugar Crash! Happy friday, kids!
posted on Jul 22, 2005 - View this thread

Safeplaces is an interactive playground. Mushrooms twitch and squeak, trees react and the environment shifts between day and night. It even has its secrets. Further, less adorable work can be found here.
posted on Apr 28, 2005 - View this thread

Hero Machine 2. Like Hero Machine Classic, but not.
posted on Nov 22, 2004 - View this thread

Catch and Release As I find this nearly impossible I have great confidence that the mefites will quickly master this. It beats working. Fun Flash Friday
posted on Aug 20, 2004 - View this thread

Friday scary-flash spook-a-thon: The Minister of Fear [via Kos]
posted on Jul 16, 2004 - View this thread

Psychopong - See if you can beat all 5 levels [Friday Shockwave Fun]
posted on Jun 4, 2004 - View this thread

The Veridian Room is Toshimitsu Takagi's long awaited sequel to The Crimson Room. Point and click puzzlers to destroy your brain. Just in time to eat away your whole Flash Friday. Mirror here. Via my mate Duncan, who got it from Albino Blacksheep.
posted on Apr 29, 2004 - View this thread

Friday Flash Fun. Grow weird things on a weird planet... weirdly. via boing-boing
posted on Feb 20, 2004 - View this thread

looney tunes games [note: flash]
posted on Jan 9, 2004 - View this thread

The game designers at Orsinal have been busy since we last discussed them, with a number of new amusing & lovely games. For those who haven't been there yet, and for those who haven't been there in a while, stop by and play... if only all flash animation were done with this degree of care and attention to aesthetic.
posted on Aug 6, 2003 - View this thread

Friday Flash: Move Your Butt! This Frogger adaptation is a promotion for a new children's book from Scholastic, The Day My Butt Went Psycho! Where does a book like this come from? Australia, of course. (Link via the Spinnoff Forums.)
posted on Apr 11, 2003 - View this thread

RummyCo: Your full service Pentagon! Hey, its flash friday.
posted on Apr 11, 2003 - View this thread

Fiendish bouncing snake game. Requires Java and lots of spare time.
posted on Apr 2, 2003 - View this thread

Friday! Friday! Friday! Friday flash fun to end all Friday flash fun.
posted on Feb 14, 2003 - View this thread

Soda Jerks Flash fun for a Friday afternoon. Couple of funny cartoons, the most recent a spoof of Joe Millionaire.
posted on Feb 7, 2003 - View this thread

This just in, file under "a" for addictive Horribly simple yet disturbingly addictive Friday Flash Spear chucker game
posted on Sep 20, 2002 - View this thread

kittens plus funky latino mix - just leave the music running, im off for a coconut with a straw and an umbrella in it. Love fridays! via haddock.org
posted on May 10, 2002 - View this thread