Multiplayer Online Games are games that are played over the Internet with other players. Typically you have only a small number of teammates and/or opponents. This is different from Massively Multiplayer Online Games, where large numbers of other players gather in various arenas and matches can support large populations.

Alien Arena:

This is consistently rated as one of the best free online games available. Excellent retro-style graphics and a deathmatch style of gameplay combine to create an experience that has a gained a dedicated following of gamers over the years.

• Alien Arena Web Site

Allegiance:

Allegiance was originally a Microsoft game which has since been handed over to the public and run as a volunteer project. You fly a spaceship in a team with other players and fight in various sectors of space.

• Allegiance Web Site

America's Army:

This game has an interesting story behind it's existence. Believe it or not, it is created and operated by the United States government, the idea being that it can help with military public relations and recruitment. This is one of the most popular free online games available, literally with millions of users.

• America's Army Web Site

Glest:

Glest is a medieval strategy game, which, as of version 3.0, now features multiplayer online play.

• Glest Web Site

Kuma\War:

Kuma \ War is a popular modern war game originally based on the war in Iraq. Many episodes have been created, re-enacting famous battles. Past episodes can be downloaded for single player use, or join the online community to play in the multiplayer episodes.

• Kuma Web Site

Little Fighter 2:

Little Fighter 2 is the current free version of the fighting game introduced in the mid-1990's. This version allows you to connect to one other friend's computer to play against each other, as well as single-player mode.

• Little Fighter 2 Web Site

Nexuiz:

Nexuiz is a free quake like game with advanced 3d graphics. It can be played single player but is meant as an online multiplayer game.

• Nexuiz Download Page

Osu!:

This is a popular rhythm video game where you compete with others by playing in time with the computer generated rhythm.

• Osu! Download Page

Savage: The Battle for Newerth:

A popular online strategy shooter game with good graphics and a deep plot.

• Savage Web Site

TrackMania Nations Forever:

A free version of the TrackMania series of racing games, with both single player and multiplayer online modes.

Toribash:

A turn-based online fighting game where you design the moves by specifying joint movements on a rag-doll style fighter.

• Toribash Home Page

Tremulous:

An online multiplayer strategy-based shooter game with advanced graphics.

• Tremulous Web Site

Uniball:

A 3d spaceship version of Hockey where online teams compete in matches.

• Uniball Web Site

Warmonger:

Warmonger is an online shooter where you can affect your environment with your weapons as well as shoot enemies.

• Warmonger Home Page

Yahoo Chess:

Yahoo has a large list of online games, most of which do not warrant much merit. Their version of online multiplayer chess, however, is very popular. You first enter a lobby where you can find worthy opponents, then battle it out in an online game with decent graphics and a chat window. Spectators can also join your chess session.

• Yahoo Multiplayer Games Site