Free multiplayer online software for linux

Daimonin is a FREE isometric real-time massive multiplayer Online RPG. 2d/3d graphics, 3d sound effects, digital ambient music.
Fast expanding world and community. Thousands of items, spells, monsters, quests... Group playing, guilds and clans. Monster AI and factions. The game play allows great object interaction.
You can open every chest or shelf you found somewhere in the game. Torches on the wall can be turned on or off. Items have detailed and complex description.
Enhancements:
- group playing
- instance maps
- new talk interface
- complex quest system
- several times bigger game world
- about 40-50 news monsters
- more and better animations
- many hundred new objects
- new map editor
- map wizard system
- VOL/GM volunteer system
- new spells
- DPS/THAC system
- and much more including many technical changes

DOFUS is a popular masive multiplayer RPG online game.

Story:

A long time ago....

.. a dragon named Bolgrot arrived in the eternal Province of Amakna. The young Rykke Errel was the only one to be courageous enough to face the terrible creature.
Instead of reducing him to dust as it could easily have done it, the dragon bowed down before the young knight and swore loyalty to him.

Months passed by...

Rykke met Helsephine, a young enchantress, and fell madly in love with her. When he introduced Helsephine to Bolgrot, Rykke would never have guessed what was about to happen.
The dragon, mad with rage, killed the sweet Helsephine and flew away, destroying everything on its way.
Rykke chased the dragon. When he found it, the old friends confronted each other in a titanic fight. Using his weapons and his magic, Rykke succeeded to bring Bolgrot down. But fatally injured, the young hero died short after.

Looking for an explanation...

... about the sudden violence of Bolgrot, the wise men of Amakna discovered within the entrails of the dragon six unusually colored eggs that were called DOFUS. Later on, it was discovered that when these eggs were reunited their power was absolute.

Absolute, but also unstable. The wise men decided to conceal those terrible relics from the rest of the world.

During the following centuries,

the secret of the existence of the DOFUS was so well kept that people eventually forgot all about them. But a cursed day among others, the guardians of the secret discovered that the DOFUS had disappeared. The news quickly spread, arousing terror and covetousness.

It didnt take long for adventurers to show up in Amakna, attracted by the prospect of glory or plunder. The destiny of Amakna was from then on uncertain and the appearance of numerous creatures as terrifying as theyre unknown added to the confusion.

Buy it online allows you to buy a product online through the context menu.

Highlight a name of a product on a web page, right click the mouse, and choose Buy it online menu item, to see the list of on-line offerings of this product.

No annoying shopping toolbars, just select and click. No affiliation with shopping vendors.

TryChess project is a multiplayer online chess game.
First it was only a test to try PHP5s news features. But it started growing and became a nearly complete chess game with many features.
Main features:
- Multiplayer game
- Preview move
- Hostory of moves
- Check and Check mate detection
- Browser indepentant (even lynx works, but does not look so good :) )
- Special moves supported partialy (rochade,...)
- Top Score list
- Invite friend function
- "Whos online?"
- Forum
- Admin functions
- Search for users

Regnum Online is a MMORPG game, that wants to invite you to join our world and play for free. The only thing we require is that you fight for your realm.
Regnum Online is a massive multiplayer online role playing game (MMORPG MMORPG) for the PC where the player are immersed in a 3D virtual world. There they can live as Elves, Humans Dwarves, or Dark Elves having exciting adventures, exploring the wild lands or joining an army of players to take on the other kingdoms armies."
The game is in beta stage, but already offers many quests, items, and monsters, not to mention the large number of both english-, spanish-, and portuguese-speaking players youll meet in-game.
Main features:
- Regnum offers 3 realms to choose from.
- 9 fully customizable player characters.
- Hundreds of quests.
- The ability to capture forts and castles.
- Expansive lands to explore.
- Glorious graphical environments.

aBridge project is a multiplayer online cross-platform bridge game.
It allows you to play bridge online with other real people.
It is currently available for UNIX (including linux), Microsoft Windows and MacOS X.
On all platforms, aBridge supports speech synthesis, allowing you to choose to listen to the bids and chat conversation rather than simply gazing at the screen waiting for someone to play.
aBridge also has some rudimentary bots, for when other players arent online, but their AI is pretty pathetic, and they are in need of a complete rewrite.
Enhancements:
- Complete rewrite of card-displaying code. Cards are now scalable.
- Remember size of game window.
- Use flite instead of festival on sid, since speech-tools is broken on sid at the moment.