This is a repost, as I removed the old one, filled with clutter and errata.This thread will become one massive post. I will start archiving things I find online that are free to play, with details, screens, and all that shit.
EVERY GAME LISTED HERE IS 100% FREE TO PLAYThe list:
Gameknot:
What is GameKnot? We are an online chess community where you can play chess online whether you only have 10 minutes to spare or the whole day. Either way, you are guaranteed a good exercise for your brain and you'll have fun too! No additional software to download, free registration, online chess at its best. You choose when to move and how often to move, and you don't have to finish the games in one sitting -- they'll be waiting for you the next day. If you prefer serious competitive chess, you can also take your time and ponder your next move for hours. You can even play at work, while doing other things or whenever you get bored! If you prefer fast real-time games, try our Blitz Chess. We offer several ways to compete and win: chess league, bi-monthly tournaments, mini-tournaments, teams and more! We also have a very helpful online chess games database.http://www.gameknot.comLast Chaos:
Last Chaos is an on-line role playing game where thousands of players can simultaneously be connected, fight and upgrade their courage and battle skills through adventures, quests and crafting skills with fellow adventurers.
By accomplishing missions, learning crafting skills and experiencing adventures in the huge and unknown world, players acquire the bravery, intelligence and strength to become the true ruler of Last Chaos.
Advanced GraphicsA powerful graphical engine brings the world of Last Chaos to life. With Bump Map Rendering Technology, a technology that enables high-quality graphics of 20,000~30,000 polygons using only 2,000~3,000 polygons, the game delivers a new level of graphical detail and world interactivity. "Filtering Technology", also known as "Glow-light effect" or "Blur filtering technology," allows for crisper, brighter images and gives the graphics a more realistic atmosphere. Last Chaos is the first online game to make use of this technology.
Personal Dungeon SystemThe "Personal Dungeon" is a private quest mode where players can go solo in an "arcade" style gaming environment. This allows players to experience parts of Last Chaos in privacy, and at a more rapid and exciting pace. Players are also rewarded handsomely in experience and treasure!
E.R.A.S.With E.R.A.S. (Exciting Range of Aggressive Battle System), players can hit monsters within the sweep of their weapons range! Got a 6 foot sword? You can hit targets 6 feet away! Combined with more exciting attack options that many action games don't have, Last Chaos provides more thrills and excitement than many similar action oriented on-line games.Item Crafting SystemPlayers are able to craft various useful items, which they can personally use or trade with other players. The Item Malls create a convenient method of trading.
Player Vs Player Vs EnvironmentOther online role-playing games have PvE - player versus environment (fighting computer-controlled monsters) and PvP - player versus player (human-controlled characters) fighting each other. Last Chaos brings these two game features together in an evolving system. PvPvE manages the complex relationships and alliances between races and guilds; and allows players a chance to test out their fighting skills against other players. Last Chaos will continue to work with players to improve the PvPvE features to make the game more exciting and challenging.
http://lastchaos.aeriagames.comSpaceCowboy:

Space Cowboy Online is an action based Massive Multiplayer Online (MMO) 3D Space Shooter. In Space Cowboy Online, players can pilot their own space fighter ships (Gears) on an imaginary planet and upgrade skills or the Gear itself.
3D Space Shooting MMO
In Space Cowboy, gamers have full control over the Gear's control making it very different from the traditional RPG's mouse click control method. This is a game based on Role-Playing Game (RPG) level concepts, but the fun and action of a First Person Shooter (FPS).
Diverse Selection of Fighting Gears
There are 4 kinds of Gears available to choose from, with each Gear having it's individual unique characteristics. These characteristics differ in skill and items giving the player the opportunity to choose which items to equip to suit the player's preferences. Gears can be upgraded to change color, performance, weapons, and so on in order to satisfy the gamer's growth of the character.
Battle Formation/Brigade System
A formation system is possible that is similar to the generic party concept of a Role-Playing Game. There can be a maximum of 6 players in a formation (triangle formation, reverse triangle formation, X form formation, etc.) dependant on the formation leader at the center of the formation during battle. The performance of the formation depends on the player's ability to work together and different formations require different skills and playing styles.
In addition to the formation, there is a brigade concept that is the equivalent to the guild term from other Massive Multiplayer Online games. A brigade can consist of 40 members, and have a specific brigade mark specified by the brigade leader to identify the brigade.
Battle/Large-Scale Battle
Space Cowboy Online has an intense battle system including Player vs Environment (PVE) and Player vs Player (PVP) elements. PVE elements are used for standard leveling from experience points, while PVP elements can be seen through 1 on 1 battles, formation (party) battles, and even brigade battles. As opposing nations exist, there will be large scale nation wars throughout the game servers resulting in a possibility of occupying enemy forces and increasing profits for ones own nation. The 3-D aerial and ground battles will bring a whole new experience to the user.
Mission
A large number of missions are available which bring the storyline into perspective depending on the player's chosen nation and have it's share of rewards.
Voice Communication System
When a headphone and microphone are in hand, 1 on 1, formation, and brigade voice communication options are possible. Using voice communication will make interaction between the users easier and more personal than just the text form of communication, as well as giving a method of communicating while the gamer can continue to be focused on their game control. Using voice communication within Space Cowboy Online will help organize strategy in large-scale battle, and missions where many people can join in.
http://sco.gpotato.comMythwar Online:
This game has so much going on that I felt a snippet from its site would do it a disservice. If you ever played and loved Final Fantasy in the OLD days when it was cartoony and simpler than all the hype shit now, you will like this game. It has a cell-shaded appearance, which is kinda nice on the yes. I have only just begun to mess with it, but it is really something, and as usual, totally free.
http://www.mythwaronline.com-----------------------
That's it for now. You are looking at possibly WEEKS of gameplay from this list, if not longer. The gameknot link is really awesome if you love chess like I do. I have tried out these items listed here, either in full or starting out, and they are worth a serious look. Each one is, again, 100% free. How can you lose with that?
Next post will continue the goodness...