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Multiplayer games support up to sixteen players. Multiplayer games include 3 types of gameplay:

• Domination - Where players must control command points to win the game. As more command points are controlled by one team, the domination bar speeds up, and when all command points are controlled by one team, the domination bar speed doubles.
• Assault - Where one team is placed to defend a series of command points, and the other to assault the command points. It is separated into 2 parts, with the second part, the two teams are switched around.
• Tug of War - Teams must fight to capture a series of command points in one line (frontline), once a line is captured the frontline is pushed back towards the enemy team. This is repeated until all of the frontlines are captured, then the game ends.

The game supports clans which players can create or can be invited to. World in Conflict uses the Massgate system, which is derived from Ground Control. The game developers have further customised the system to make things easier for players. Players can search up friends and see if they are online or playing a game. This interaction is further extended to that players could join the same game their friend/s may be playing in a click of a button. Clans feature ranks of Grunts, Officers and the Clan Leader. Players can customise their online account such as changing display pictures, allowing people to view their account. Online accounts which are based upon that of Battlefield 2 feature ranks, medals and badges. Clans can also have tournaments against each other. There are various achievement records that a player can obtain by playing well. Awards show how well the player did in a match, how well the player did in that multiplayer mode etc. Rankings show how a player ranks compared to other players, while medals show the player's achievements, they are similar to awards but easier to obtain. Badges also show the player's achievements but are easier to obtain than awards and medals. They are all separated by bronze, silver and gold and honor stars counting as extra rewards. Friend lists and acquaintances are also to be included to make finding other players easier. There is also a search tool which allows players to search for clans and players. Leaderboards are also available listing the rankings of clans, players.