Everybody Edits is a fun Flash game where everyone edits the world and plays in it together.
posted by sveskemus on May 8, 2010 - 167 comments

Oh woop de do it's Tetris on the internet. No seriously, Tetris Friends is awesome. [more inside]
posted by The Devil Tesla on Sep 8, 2009 - 48 comments

Nano War: Infectious Flash Fun. Colonize blobs, send swarms, and win superior numbers. Free multi-player and level editor. Dangerously addictive. [more inside]
posted by The Whelk on Dec 5, 2008 - 24 comments

Shockwave Friday Fun - Tank Ball 2. (previously) [more inside]
posted by Samuel Farrow on Jun 19, 2008 - 16 comments

Paul and Dave, creators of the extremely popular Desktop Tower Defense flash game, have just opened up their new flash games site to the public! [more inside]
posted by flatluigi on Dec 6, 2007 - 18 comments

Sumo Volleyball - online competition at its finest. Yep, Friday flash fun on Tuesday. For those of you who used to have ICQ, this game will be very familiar. Four different variates of play are offered. 1 on 1 is by far the favorite and the most fun, IMHO. One tiny downside, activeX based, and thus, pretty much IE only. There are also other games via the home page, of which Kung-fu chess is also very popular.
posted by killThisKid on Jul 23, 2007 - 8 comments

Stick Arena - mindless multiplayer Flash violence, because I can't frigging wait for it to be Friday already.
posted by whir on Dec 20, 2005 - 14 comments